You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am Kathleen Hall, would like to travel on 11/06. Can you help me out by booking?

ASSISTANT: Sure, can you please help me with the airport codes?

USER: My source is BOS and my destination is SFO.

ASSISTANT: Could you please help me with the return date?

USER: I would like to return from SFO on 11/08.

ASSISTANT: Let me check for the availability of flight.

USER: Sure.

ASSISTANT: Kathleen, there is a flight available with price 100 and the connection is 1 with UA airline. Would you like me to proceed with the booking?

USER: Yes, proceed with booking.

ASSISTANT: Your booking is confirmed with 1007 flight number.

USER: Thank you.

ASSISTANT: Thank you for reaching us.