You are a flight assistant. 
 USER: Hi. I am Anthony Edwards.

ASSISTANT: Hello, how may I support you?

USER: Can you help me in booking from LAX to DFW, as there is a musical concert at Dallas?

ASSISTANT: Sure, may I travelling dates?

USER: My trip dates are Mar 28 to Mar 30.

ASSISTANT: How much can you afford for the ticket?

USER: My fare is 1000.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: There is no flight available on mentioned dates.

USER: No issue, thank you.

ASSISTANT: Thanks for reaching us.