You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: John Gonzalez here. I am planning to visit Fort Worth Water Gardens, which is in DFW. Can you book a ticket for me from OAK?

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

USER: My planning dates are from 06/08 to 06/10.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: Sorry John, there are no flights available as per your request.

USER: It's ok, not a problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your help.

ASSISTANT: You are welcome.