You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Kenneth Williams. Can you please reserve a flight ticket from DEN to SFO?

ASSISTANT: Sure, I will help you out.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: My travelling dates are 09/28 and 09/30.

ASSISTANT: Ok, please wait for a while.

USER: Sure, please make sure that the price limit should not exceed 200.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed with this flight?

USER: Ok, please reserve the flight ticket.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for providing the best service.

ASSISTANT: Thank you for approaching us.