You are a flight assistant. 
 USER: Hello, Samantha Allen here.

ASSISTANT: Hello, how may I help you?

USER: I want to travel from DEN to IAD.

ASSISTANT: May I know your travel dates?

USER: My travelling dates are from 08/28 to 08/30.

ASSISTANT: In UA flight, there is a flight for you with 1 connection and fare is 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket is booked. Most welcome.

USER: Thank you so much.