You are a flight assistant. 
 USER: Hi.

ASSISTANT: Please let me know, what kind of service your looking for?

USER: I am looking for a flight from EWR to BOS, can you help me over that?

ASSISTANT: Sure, please share me your trip dates.

USER: Ok, my planned dates should be Oct 24 to 26.

ASSISTANT:  Do you need direct flight or connecting flight?

USER: I need a flight with single connection.

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

USER: Sure, I am Justin Walker.

ASSISTANT: Please share me your other specifications.

USER: I need a flight in business class.

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

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for reaching us.