You are a flight assistant. 
 USER: Hi. Katherine Campbell here.

ASSISTANT: Hello, how can I assist you?

USER: Please help me out in booking the ticket from LGA to ATL.

ASSISTANT: Sure, may I know your preferred dates of travel?

USER: My trip dates will be 06/20 to 06/22.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Do you have any connection limit?

USER: My connection limit is 1.

ASSISTANT: Any other requirements to be met?

USER: My depart time must be in the afternoon.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

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

USER: That's ok. Thank you.

ASSISTANT: Thank you.