You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am William Harris, want to travel from SFO to DCA. Please help me in booking my ticket.

ASSISTANT: On whichd ates you are planning to travel?

USER: Sure, my trip dates are from 11/16 to 11/18.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting and we have found a flight in economy class with 1 connection in Delta airlines and the fare of your flight will be 300. Do you like me to proceed your booking with this flight?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Most welcome.