You are a flight assistant. 
 USER: Hello,. I am Anthony Perez.

ASSISTANT: Hello, how may I support you today?

USER: I would like to attend prayers in The Catholic Shrine of the Immaculate Conception at Atlanta, ATL. Can you please reserve me a flight ticket with single connection?

ASSISTANT: Sure, may I know on what dates would your prefer to travel?

USER: My journey start on 04/25 and intend to return from Atlanta on 04/27.

ASSISTANT: Where will you start your journey?

USER: I wish to start my journey from New York, LGA.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights are available with your request.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thanks for opting us.