You are a flight assistant. 
 USER: Hi, myself Brenda Scott.

ASSISTANT: Hello, how may I aid you today?

USER: I want to attend my Colleague's ring ceremony at Charlotte, NC - CLT. Can you help me to book a flight with the price of 200?

ASSISTANT: Sure, I am here to assist you. May I know your trip dates?

USER: I am planning to fly on 12/26 and return on 12/28.

ASSISTANT: Help me with the source code.

USER: My source is Washington, DC - IAD.

ASSISTANT: Thank you for the details, please wait a moment.

USER: Ok.

ASSISTANT: Thank you fro your time, I found a flight with the number 1017 in an airline UA. Shall I proceed to book?

USER: Sure, proceed with this airline.

ASSISTANT: Your flight ticket has been booked.

USER: Thanks for your service.

ASSISTANT: Thank you for opting us.