You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am planning to visit Atlanta to meet my friend, can you please book me a ticket from LGA to ATL?

ASSISTANT: Sure, I will help you for booking. Can you please provide me your travelling dates?

USER: My preferable journey dates are from 12/25 to 12/27.

ASSISTANT: Ok, give me a moment.

USER: Sure, please find a flight with ticket fare of under 200.

ASSISTANT: Sure. I found a flight for you with the fare 100.

USER: Please reserve my ticket with the name Cynthia Rodriguez.

ASSISTANT: Your ticket is confirmed with flight number 1004 and airline is AA.

USER: Thank you for booking my ticket.

ASSISTANT: Welcome. Thank you for choosing us.