You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to travel from ORD to LGA, help me in booking a flight?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates are Apr 22 to 24.

ASSISTANT: May I know your name please?

USER: I am Rebecca Allen.

ASSISTANT: Do you have any connection limit?

USER: I prefer single connection flight.

ASSISTANT: May I know your airline preference?

USER: I don't have airline preferences.

ASSISTANT: Do you have any other requirements?

USER: I will be back on afternoon flight.

ASSISTANT: Ok, please be on hold.

USER: Ok.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.