customer: Hi. I am Edward Moore. 
 agent: Hello, what help you are looking for? 
 customer: I want to go for a weekend trip with my friends to Oakland.Can you help me to reach from SFO to OAK? 
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 customer: I want to depart on 04/28 and return by 04/30. 
 agent: Please stay online for a moment. 
 customer: Sure. 
 agent: Sorry, all tickets are booked for this summer. 
 customer: That's ok. Anyways, thank you for your help. 
 agent: Thank you for connecting us.
agent: Please share your itinerary dates.