You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jessica Parker.

ASSISTANT: Jessica Parker. How can I help you?

USER: Could you help me in booking a flight ticket from BOS to SFO?

ASSISTANT: Sure, provide me with the travel dates?

USER: I want to fly on Aug 06, return on Aug 08.

ASSISTANT: Do you have any airline preferences?

USER: No.

ASSISTANT: Is there any class concern?

USER: No.

ASSISTANT: Let me know your connection limits?

USER: I want a flight with one connection.

ASSISTANT: Are there any more preferences?

USER: My return time should be afternoon.

ASSISTANT: Shall I check for the availability?

USER: Sure.

ASSISTANT: I regret to inform that there no flights available on your route with your requirements.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.