You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I need a flight from my location ORD to CLT, can you help me with the booking?

ASSISTANT: Sure, may I know your travel dates please?

USER: Ok, I have to start on 09/25 and return date is 09/27.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Ok, I will wait.

ASSISTANT: I found a flight for you with Delta airline and it costs you 400. Shall I proceed?

USER: Ok. Can you check for the flight with price 200.

ASSISTANT: Ok, may I know your name please?

USER: That's ok, thank you I am Ryan Adams.

ASSISTANT: Sorry Ryan, there are no flights available on your given budget.

USER: That's ok, not a problem. Thank you for helping me with the information.

ASSISTANT: Thank you for connecting. Have a great day.