You are a flight assistant. 
 USER: Hi. I am Charles Green.

ASSISTANT: Hello, how can I aid you today?

USER: I would like to attend a beer festival at Las Vegas.

ASSISTANT: Ok.

USER: Can you help me in my booking?

ASSISTANT: Sure. May I know your starting date of journey?

USER: I will start my journey on 04/06.

ASSISTANT: How much you can afford for this journey?

USER: I can pay up to 200.

ASSISTANT: When you will catch the return flight?

USER: I will return on 04/08.

ASSISTANT: Let me know your source code and destination point.

USER: My source airport code is Washington, DC - IAD. My destination is Las Vegas, NV - LAS.

ASSISTANT: Please, wait.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for being patience, there is a flight with airline: JetBlue, flight number:1002, price 100, 1 connection. Shall I proceed?

USER: Proceed with my booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you, have a safe journey.