You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to visit Denver, please help me in booking a ticket from IAD to DEN.

ASSISTANT: Sure, I will help you out. May I know your travelling dates please?

USER: My travelling dates are 04/26 and 04/28.

ASSISTANT: May I know your name please?

USER: My name is Betty Adams.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

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

USER: Ok, please book my ticket.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.