You are a flight assistant. 
 USER: Hello, this is Gregory Garcia from Los Angeles.

ASSISTANT: Hello. How may I be of your help?

USER: Last week, I made a plan to go for a private moon light DC city walk. So, now I want to book a ticket to do this at Charlotte, CLT on 05/31. Will you help me in this?

ASSISTANT: Sure, we are here to help you in booking.

USER: Thank you.

ASSISTANT: Please let me know if you need a connecting flight.

USER: Yes, I prefer a connecting flight.

ASSISTANT: Where do you want to start your journey to reach Charlotte?

USER: I would like to start my journey from Los Angeles, LAX.

ASSISTANT: How much fare you are expecting for the flight ticket?

USER: My fare limit is 200.

ASSISTANT: When do you want to return from Charlotte?

USER: On 06/02, I have to return.

ASSISTANT: Ok, please wait a moment I will search best flight for you.

USER: Sure, I will wait.

ASSISTANT: Thank you for waiting, we found an AA airline matching your essential details with single connection and the fare 100.

USER: Please proceed with booking.

ASSISTANT: Shall I book economy class ticket?

USER: Sure, book it.

ASSISTANT: Your booking has been confirmed with the flight number-1007.

USER: Thank you.

ASSISTANT: Thank you for approaching us.