You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am William Roberts. Can you help me in booking from IAD to LAS, as there is a sports meet to attend?

ASSISTANT: May I know your travel dates?

USER: My trip dates are 09/13 to 09/15.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1012. Shall I proceed with this flight?

USER: You can confirm it.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Most welcome.