You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what services are you seeking from us?

USER: Can you help me to book a flight ticket from CLT to BOS?

ASSISTANT: Sure, please share me your trip dates.

USER: My travel dates are 14 to 16 of Sep.

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: I am Dennis Turner.

ASSISTANT:  Would you let us know if you have any other preferences?

USER: I prefer to depart in the morning.

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

USER: It's ok, not a problem, thank you.

ASSISTANT: Thank you for choosing us.