You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Richard Allen.

ASSISTANT: How may I assist you?

USER: I would like to travel from IAD to CLT, can you please book a ticket?

ASSISTANT: Sure, may I know your trip dates?

USER: I would like to go on 07/13 and 07/15.

ASSISTANT: I found a flight with airline Frontier and connection is 1. Shall I proceed?

USER: Make sure the price of the flight should not exceed 1000.

ASSISTANT: Sure, price is 200.

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket has been booked with flight number 1020.

USER: Thank you.

ASSISTANT: Thanks for contacting us.