You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is William Wright. I want to book a flight ticket from NY - LGA to GA - ATL to meet my parents in Atlanta.

ASSISTANT: Sure, when you are willing to travel?

USER: I will start on 05/03, return on 05/05.

ASSISTANT: Ok, do you have any other requirements?

USER: My price limit is 200. I want one connection in my journey.

ASSISTANT: Sorry to inform you, there are no flights in the dates you have given.

USER: No problem, thanks for your service.

ASSISTANT: Thank you for communicating with us. Have a nice day.