You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. May I know your good name, Please?

USER: I want to meet my friend at Washington,DC-DCA. Can you help me in reserving a flight ticket?

ASSISTANT: Sure. May I know your airport codes and travel dates?

USER: Sure,My starting point is from Charlotte,NC-CLT. My travel dates are 10/7 to 10/9.

ASSISTANT: May I know your good name, Please?

USER: Make sure that the flight is single connection with price limit 500.

ASSISTANT: Sure.

USER: Sure, I am Sandra Phillips.

ASSISTANT: Connection limit is 1. Is that OK for you Sandra Philips?

USER: Yes I am ok with that flight.

ASSISTANT: We found an AA airline with price:100 matching your requirements. Shall I proceed with the ticket booking?

USER: You can proceed with booking.

ASSISTANT: Flight number is 1002. Your ticket booking is completed.

USER: Thank you for your help.

ASSISTANT: Thank you, for choosing us for booking your ticket.