You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Linda Lopez want to visit Las Vegas on my vacation, can you book a ticket within the fare of 1000?

ASSISTANT: Sure. May I know your travel dates?

USER: Sure, my travelling dates will be 10/03 and 10/05.

ASSISTANT: Can you provide your airport codes?

USER: Sure, I would like to travel from LGA to LAS.

ASSISTANT: Ok, we have an Delta airline with flight number 1010 available for you at this moment. The fare is 100.

USER: Ok, proceed with my booking.

ASSISTANT: Your booking has been done.

USER: Thank you.

ASSISTANT: Thank you for choosing us.