You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I best serve you today?

USER:  I am Helen Evans. I want to surprise my brother on his graduation day at AZ-PHX. Can  You book a ticket from NV-LAS?

ASSISTANT: Sure, please let me know your price limit?

USER: My price limit is 200.

ASSISTANT: When are you willing to travel?

USER:  My travel dates are 08/25 and 08/27.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, we found a flight ticket in AA airline with fare of 200 having a halt.

USER: Please confirm my journey.

ASSISTANT: Your ticket has been reserved with in 1028 flight number.

USER:  Thank you for booking.

ASSISTANT: Thanks for availing us, have a safe journey.