You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. how may I aid you today?

USER: Can you please reserve me a flight ticket from LGA to BOS?

ASSISTANT: Sure, please share me your trip dates.

USER: My trip dates are 09/13 - 09/15.

ASSISTANT: May I know your arrival and depart timings?

USER: My return time should be in the afternoon.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Rebecca Carter.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: No issues, thank you.

ASSISTANT: Thank you for opting us.