You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Steven Lee,want to travel from DEN to DCA.

ASSISTANT: May I know your trip dates?

USER: My travel dates are from 03/18 to 03/20.

ASSISTANT: There is a flight available for you in Southwest airline with 1 connection. Shall I proceed with the booking?

USER: Yes, please.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Most welcome.