You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please reserve me a flight ticket from BOS to CLT as I have to attend a workshop at Charlotte?

ASSISTANT: Sure,I will help you. Can you please share me your travelling dates?

USER: Sure, my travel dates are from Dec 22 to Dec 24.

ASSISTANT: Ok, please mention your name.

USER: Larry Campbell here.

ASSISTANT: Ok, do you have any connection limit?

USER: I prefer connecting flight for my journey.

ASSISTANT: Ok, do you have any other specifications?

USER: I would like to depart in the evening time.

ASSISTANT: Sorry, no flights are available on your route.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Welcome, have a nice day.