You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me with booking a flight ticket from LAX to LGA?

ASSISTANT: May I know your travel dates?

USER: My travelling dates are from Feb 15-17.

ASSISTANT: Do you have any connecting limit preferences?

USER: I would be comfortable with single stop over.

ASSISTANT: Is there any other concern?

USER: My return has to be in evening.

ASSISTANT: May I know your name please?

USER: Ryan Jones here.

ASSISTANT: No flights found as per your preferences at the moment.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.