You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I aid you?

USER: I am Michael Lee. I want to book a flight ticket from CLT to IAD. Could you help me in booking?

ASSISTANT: Sure, I will help you. In which class do you want to travel?

USER: I am comfortable with any.

ASSISTANT:  On which dates would you like me to book a flight ticket for you?

USER: My travelling dates are from Oct 01-03.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Thanks for waiting. You have a flight 1015 in Delta airline and price 100 with a connection, Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you.