You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Nicholas Williams, want to travel from DCA to SFO.

ASSISTANT: May I know your trip dates?

USER: My trip dates are from 08/19 to 08/21.

ASSISTANT: There is a flight for you with 1 connection. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Most welcome.