customer: Hello, Donna Baker here. 
 agent: Hello, how may I provide service to you? 
 customer: I need to travel from SFO to HOU, can you reserve me a ticket? 
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 customer: My journey dates are Sep 23 to 25. 
 agent: Please let me know your departure and return timings. 
 customer: My departure is afternoon. 
 agent: Do you prefer any class in your journey? 
 customer: I am comfortable with any class. 
 agent: Is there any more specifications? 
 customer: I need a connecting flight. 
 agent: We found a Frontier airlines, flight number 1006, price is 200 in economy class, and your depart time in the afternoon. Shall I proceed? 
 customer: Ok, proceed. 
 agent: Your ticket has been reserved. 
 customer: Thank you. 
 agent: Thank you for reaching us.
agent: Sure, may I know on which dates you wish to travel?