You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Joseph Edwards. I am looking for a flight from JFK to LAX, can you help me out?

ASSISTANT: Sure Edwards, can I know the travel dates please?

USER: My  travel dates are from 11/15 till 11/17.

ASSISTANT: Ok, wait a moment please. Sorry to say that, there are no flights available on your dates.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for approaching us.