You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: Please help me to book a flight ticket from LGA to ATL.

ASSISTANT: Kindly, mention your trip dates.

USER: My journey dates are from Apr, 21 to Apr, 23.

ASSISTANT: Do you have any connection limit?

USER: I need a single connecting flight.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Are there any other specifications?

USER: No.

ASSISTANT: Can I know your good name?

USER: Paul Moore.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: Thank you for your information.

ASSISTANT: Thank you.