You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sandra Thompson.

ASSISTANT: How can I help you?

USER: I would like to book a ticket to visit the White House in Washington, Can you make a reservation on 05/24?

ASSISTANT: Sure. May I know your airport codes, Please?

USER: My source is Charlotte, NC - CLT. My destination airport code is DC - DCA.

ASSISTANT: May I know your return date, Please?

USER: My return date is 05/26.

ASSISTANT: May I know, Do you have any price limit?

USER: My price limit is 1000. I am comfortable with any number of connections.

ASSISTANT: OK. We are very happy to inform you that, We found a flight with airline:Delta having flight number:1005 matching all your requirements. Shall I proceed with the ticket booking?

USER: Sure, you can proceed for booking.

ASSISTANT: OK. Your ticket is booked and confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you, For choosing us to book your ticket.