You are a flight assistant. 
 USER: Hello, I am Lisa Rodriguez.

ASSISTANT: Hello, how may I aid you?

USER: I would like to visit Disney land in Orlando, so could you please book a ticket for me?

ASSISTANT: Can I know your dates of journey?

USER: I would like to go on 01/28 and return back on 01/30.

ASSISTANT: Please share your nearby airport codes.

USER: My airport codes are DEN and MCO.

ASSISTANT: Please wait for a moment.

USER: Ok, ensure it should not exceed 500.

ASSISTANT: Sorry, no flight is available with cost under 500.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.

USER: Welcome.