
You are an expert in evaluating and guiding a web navigation agent. Your task is to help the agent effectively complete a given mission on a website based on the user’s intent. The agent’s goal is to navigate through the website to reach the desired state that aligns with the user’s objective.

You will analyze the next state of the webpage (OBSERVATION) after each action and determine whether the agent is successfully progressing towards the task goal. You will also assist the agent by choosing the next action if necessary, considering the dynamics of the web environment and how each state transitions.

Key Points:
1. Understand the intent:
- Identify the user’s goal (e.g., finding information, navigating to a specific page, modifying content).
- Make sure the next state of the webpage aligns with achieving that goal based on the current state and user’s intent.

2. Evaluate the Next State:
- When assessing the next state, consider how it contributes to reaching the intended goal. If the next state moves the agent closer to the user’s goal, it is evaluated positively.
- If the next state does not progress towards the goal or leads to an error, suggest alternative actions that will result in a more favorable next state.

3. State Guidance:
- If the next state shows that the agent is on the right track but hasn’t completed the task yet, recommend further actions that could bring the next state closer to the goal. Focus on guiding the agent to reach a state that reflects clear progress towards the goal.

4. Types of Tasks:
- Information Seeking: The next state must provide the specific information the user seeks (e.g., product price, reviews). If the information is unavailable, the next state should explicitly indicate that.
- Site Navigation: The next state must reflect that the agent has navigated to the exact page or item. Check if the state includes content based on the user’s intent.
- Content Modification: The next state should indicate that the requested content modification has been successfully committed (e.g., form submission, comment posting).
- General Task: Evaluate the entire process to ensure the next state reflects task completion. Stop actions should only be issued when the objective is met.

5. Common Pitfalls:
- Repetitive typing actions: Ensure that the next state does not show corrupted input due to repeated typing.
- Incomplete navigation: Ensure the agent’s next state reflects navigation to the specific item or content, not just to a general page or category.

Output Format with a Score Between 0 and 1:
Each next state will be evaluated with a score between 0 and 1, assessing how well the state moves towards the task’s completion. This score provides nuanced feedback on the state’s effectiveness.
0: The next state is a failure or leads away from the task.
Values closer to 0 (e.g., 0.1, 0.2): The next state does not contribute meaningfully but isn’t a total failure.
0.5: The next state is neutral, and the agent is maintaining its current position.
Values closer to 1 (e.g., 0.7, 0.8): The next state is helpful and moves the agent closer to the task goal.
1: The next state is optimal and is directly aligned with completing the task.

Response Format:
1. You should write your rationale providing a detailed analysis of the next state and reasoning for its score, providing a score between 0 and 1 based on how well the next state contributes to task completion.

Output Format: [Rationale] <your thought> [Score] <a value between 0 and 1>

OBJECTIVE: Book a one way ticket from Faro to Bournemouth leaving on 30th April, with a value fare, for a passenger named Mr. Joe Bloggs. Don't select now and  only take 1 small bag onboard.
PREVIOUS ACTION: ["type [2032] [faro] where [2032] is 'Departure' required: False", "click [5212] where [5212] is 'Faro'", "type [6253] [bournemouth] where [6253] is 'Destination' required: False", "click [9884] where [9884] is 'Bournemouth'", "click [2235] where [2235] is '30'", "click [1] where [1] is '' focused: True url: about:blank", "click [15857] where [15857] is 'Search'"]
CURRENT OBSERVATION:	[18073] button 'Sign up'
	[18078] button 'Log in'
	[18109] heading 'Faro'
	[18115] heading 'Bournemouth'
	[18127] button 'Edit search'
	[18198] heading 'Faro to Bournemouth'
	[18219] button '28Apr Friday'
	[18236] button '29Apr Saturday'
	[18253] button '30Apr Sunday $148 . 16'
	[18277] button '01May Monday $61 . 99'
	[18301] button '02May Tuesday $31 . 99'
	[17923] button 'Select'
	[18390] tooltip 'Choose a flight to continue'
		[18432] button 'Cookie preferences'
CURRENT ACTION: click [17923] where [17923] is 'Select'
NEXT STATE PREIDCTION: 	[19168] button 'Sign up'
	[19173] button 'Log in'
	[19215] heading 'Faro'
	[19221] heading 'Bournemouth'
	[19233] button 'Edit search'
	[19295] heading 'Your selected flight'
	[19323] button '28Apr Friday'
	[19340] button '29Apr Saturday'
	[19357] button '30Apr Sunday $148 . 16'
	[19381] button '01May Monday $61 . 99'
	[19405] button '02May Tuesday $31 . 99'
	[19476] heading 'Fares'
	[19499] heading 'Value'
		[19518] heading 'Continue for $148 . 16'
	[19537] heading 'Regular'
	[19569] button '$37 . 50 more on each flight'
		[19570] heading '$37 . 50 more'
	[19591] heading 'Plus'
	[19640] button '$46 . 50 more on each flight'
		[19641] heading '$46 . 50 more'
	[19669] heading 'Flexi Plus'
	[19712] button '$109 . 63 more on each flight'
		[19713] heading '$109 . 63 more'
		[19769] button 'Cookie preferences'
[Rationale] In the current observation, the agent is making progress towards achieving the objective of booking a one-way ticket from Faro to Bournemouth. The state shows that the agent has successfully navigated to a page presenting the selected flight details, including the fare options available for the passenger named Mr. Joe Bloggs. However, while the agent has correctly identified the flight on 30th April and is presented with the fare options, the next state does not yet confirm that the desired 'Value' fare has been selected or that the booking process is moving forward.

The next state retains critical information such as the flight details and the option for fare selection, which is conducive to fulfilling the user’s goal. However, because the agent has not yet proceeded to select the 'Value' fare or continue the booking process, the state represents only partial progress. The 'Select' button has been clicked, but the actual fare selection and further steps toward completing the booking have not been actioned. This lack of progress towards confirming the value fare contributes to the lower score.

The score of 0.33 reflects this incomplete progress, indicating that while the agent is on the right track with relevant information presented, it hasn't yet transitioned to a state that confirms the user’s task is closer to completion. The next action should ideally involve selecting the 'Value' fare option and proceeding to the next step in the booking process. [Score] 0.33