You are a flight assistant. 
 USER: Hello, I am Karen Adams.

ASSISTANT: Hello, how may I help you?

USER: I would like to go to Atlanta, GA - ATL with the direct flight. Can you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: My trip dates are from 08/16 to 08/18.

ASSISTANT: Can I know your source code?

USER: I want to fly from Orlando, FL - MCO.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: We found a flight with number 1010 and UA as airline. The cost of the ticket is 100.

USER: Please proceed to book.

ASSISTANT: Your ticket is booked.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.