You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Eric Lewis. I want to book a ticket from DEN to MSP, can you help me over that?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: Ok, my trip dates are from Aug 15 and Aug 17.

ASSISTANT: Please wait for a moment.

USER: Take your own time.

ASSISTANT: I have found a direct flight with price 100, can I proceed?

USER: Ok, proceed with booking.

ASSISTANT: Your booking is done.

USER: Thanks for your help.

ASSISTANT: Welcome.