You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, let me know your good name please.

USER: My name is Jonathan Martinez.

ASSISTANT: Ok, how may I serve you today?

USER: I have a Fottball Championship. Can you help me in booking a direct flight to Dallas & Fort Worth?

ASSISTANT: Sure, may I know your limit of price?

USER: Yes, the price must be under 500.

ASSISTANT: Please provide your journey airport codes.

USER: My destination is TX - DFW and origin is NY - JFK.

ASSISTANT: When do you plan your trip?

USER: I need to reach there by 06/08 and I would return on 06/10.

ASSISTANT: Ok, give me sometime.

USER: Sure.

ASSISTANT: Thanks for waiting. There is no flight found with your specifications.

USER: Thanks for your assistance. That's fine.

ASSISTANT: Thank you for reaching us.