You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Jonathan Scott, want to travel from IAD to LAS.

ASSISTANT: May I know your trip dates?

USER: My travelling dates are from 07/15 to 07/17.

ASSISTANT: There is a flight which can travel to your region having a single lay out in between your journey having a ticket fare of 200 which is provided by UA airlines. Would you like to book this flight for your journey?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Most welcome.