You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Could you please book a flight ticket from LGA to ATL?

ASSISTANT: Ok, may I know your journey dates?

USER: My journey dates are Nov 25 and Nov 27.

ASSISTANT: May I know your name please?

USER: My name is Andrew Rodriguez.

ASSISTANT: Do you need any requirements?

USER: I want to return in the afternoon. And I need a single connecting flight.

ASSISTANT: Sorry, no flights are available for you.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for choosing us.