You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Richard Mitchell. I want to book a ticket from DCA to SFO to attend seminar, can you help me in booking?

ASSISTANT: Sure, I am here to help you in booking. May I know your travel dates please?

USER: I am departing on 01/13 and return on 01/15.

ASSISTANT: Please be on hold.

USER: Sure.

ASSISTANT: Delta airlines is having a connecting flight with a fare of 200, shall I proceed with booking?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been reserved with the flight-1001.

USER: Thank you for your help.

ASSISTANT: Welcome, have a safe journey.