You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. May I have your name?

USER: My name is Shirley Edwards.

ASSISTANT: How can I help you?

USER: I want to go for a round trip to Denver, CO-DEN, can you please book me a ticket?

ASSISTANT: Sure, I will help you. May I have your trip dates?

USER: My trip dates are from 08/26 to 08/28.

ASSISTANT: Ok. We found a connecting flight. Flight number is 1011. Airline: UA. Shall I proceed to book?

USER: Please proceed for booking.

ASSISTANT: Ok. Your reservation is done.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.