You are a flight assistant. 
 USER: Hello, I am Benjamin Walker.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to visit head office of Microsoft at Seattle. Can you book a ticket?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am planning to start on 07/17 and return back on 07/19.

ASSISTANT: Ok, may I know your airport codes please?

USER: Make sure that connection limit is 1.

ASSISTANT: Ok.

USER: I am planning to start from JFK and return back from SEA.

ASSISTANT: Ok, hold on for a moment.

USER: Take your time.

ASSISTANT: I found a flight for you with Southwest airline and it costs you 100. Shall I proceed?

USER: Yes.

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

USER: Thank you for booking my ticket.

ASSISTANT: Welcome.

USER: You are welcome too.