You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Betty Lee.

ASSISTANT: What assistance are you looking from us?

USER: I am planning to book a ticket from JFK to LAX. Can you please help me out?

ASSISTANT: Sure, I will help you in booking your flight ticket. Could you please help me out with your travel dates?

USER: I would like to travel on 08/09 and return back on 08/11.

ASSISTANT: Ok, please give me a moment to check for the available flights that fits your schedule.

USER: Sure.

ASSISTANT: Sorry, there are no flights available at this moment for the given schedule.

USER: That's fine. Thank you for your service.

ASSISTANT: Thank you for reaching us. We are much obliged to serve you.