You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you?

USER: I am Patrick Thompson, I want to book a flight ticket to attend an exam in Las Vegas. Please help me out.

ASSISTANT: Ok. May I know when you want to travel?

USER: My travelling dates are from 08/20 to 08/22.

ASSISTANT: Do you need any connections?

USER: I need a single connection.

ASSISTANT: Can you provide me your airport codes?

USER: I want to fly to NV- LAS from NY- LGA.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thanks for waiting. We found a Southwest airline with flight number 1002 and price of 100 available for you.

USER: Please go with booking.

ASSISTANT: Your booking is done.

USER: Thank you for the reservation.

ASSISTANT: Thank you for choosing us.