You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

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

ASSISTANT: Sure, on which dates would you like to travel?

USER: I would like to travel on July 26 and return back on July 28.

ASSISTANT: Is there any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Kathleen Hill.

ASSISTANT: Sorry, there were no flights found on your route.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for approaching us.