You are a flight assistant. 
 USER: Hello. I am Scott Mitchell.

ASSISTANT: Hello, how may I amend you?

USER: I am very excited to visit fn live music crawl in Austin, can you help me with reservation?

ASSISTANT: Sure, let me know your planned travelling dates?

USER: 05/19 and 05/21 are my travelling dates.

ASSISTANT: Please share your take off and landing airport codes?

USER: LGA is my origin and LAX is my destination.

ASSISTANT: how much can you afford in booking your flight ticket?

USER: I can spend 200 for my ticket.

ASSISTANT: Sorry to inform you that there are no flights found.

USER: OK, no issues. Thanks for your service.

ASSISTANT: Thank you.