You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Patrick Gonzalez. I am planning for a vacation in my holidays, can you help me to find a flight from DCA to DFW?

ASSISTANT: May I know your travel dates?

USER: I have only 3 leaves so with that I have to be there for 05/31 and return to my place on 06/02.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: We found a flight on your details with airline Frontier, flight number: 1018. Shall I book this ticket?

USER: You can book a ticket with this flight.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your help and great service.

ASSISTANT: Thank so much for choosing us.