You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I want to reserve my ticket from BOS to CLT to visit Charlotte, can you please help me in this?

ASSISTANT: Sure, when do you want to travel?

USER: Sure, my preferable dates of journey are from Nov, 14 to Nov, 16.

ASSISTANT: Can I know your class preference?

USER: No, I want a return time which should be at evening.

ASSISTANT: Do you want a connecting flight or direct flight?

USER: Yes, I want a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Can I know your name, please?

USER: Sure, my name is Emma King.

ASSISTANT: Sorry, there are no flights available on your travelling dates.

USER: Ok, no problem. Anyways, thank you for your service.

ASSISTANT: Thank you for choosing us.