You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Myself Larry Wilson from Atlanta.

ASSISTANT: Glad to meet you  Wilson.

USER: Thanks. Can you please help me in flight ticket booking process from ATL to PHL?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: Thank you for your positive response, I want to take off on 07/22 and please confirm my return ticket also on 07/24.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT:  Larry Wilson, there are no flights available in your route.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Thank you for approaching us.