You are a flight assistant. 
 USER: Hi. I am Joseph Roberts.

ASSISTANT: Hello, how can I assist you?

USER: I need to book a flight ticket from PHL to SFO, Can you please help me for booking?

ASSISTANT: Sure, can you please share your travelling dates?

USER: I would like to travel on 12/18 to return on 12/20.

ASSISTANT: Do you have any limits on number of connections?

USER: I am comfortable with any connections.

ASSISTANT: Do you have any other requirements?

USER: I need a departure time is morning.

ASSISTANT: We found an JetBlue airlines with single connection and your depart time is 5:00 AM. Shall I proceed?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket has been confirmed with 1002 flight number.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.