You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I'm Donald Anderson.

ASSISTANT: Nice to meet you Donald.

USER: I am planning to attend live concert at Las Vegas, can you please help me with booking a flight ticket?

ASSISTANT: Sure, I am happy to help you. Can you please provide your nearest airport codes for booking?

USER: My source airport code is LGA and the destination airport code is LAS.

ASSISTANT: Ok, may I know your preferable dates of travelling?

USER: Sure, I would like to take off on 05/23 and return back on 05/25.

ASSISTANT: Please wait a moment to check the flights.

USER: Ok, but please make sure that the price limit does not exceed 500.

ASSISTANT: Based on your information, I have found a flight with 1 connection with the fare of 100. Is it ok for you?

USER: Yes, please proceed with the booking.

ASSISTANT: Ok, your seat is reserved in flight number 1025.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us, have a great journey.

USER: You are welcome.