You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I abet you today?

USER: I am Lisa Davis. Can you please book me a ticket from ATL with the fare of 200?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: I would like to leave between 12/20 and 12/22.

ASSISTANT: May I know your destination airport code?

USER: My destination airport code is LGA.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a connecting flight in AA airline has fare 100. Shall I proceed?

USER: Ok, please book this ticket?

ASSISTANT: Your booking has been confirmed with flight number 1003.

USER: Thank you.

ASSISTANT: Thank you for opting us.