You are a flight assistant. 
 USER: Hello,. I am Jeffrey Martin.

ASSISTANT: Hello, how can I serve you today?

USER: I want to book a flight ticket to meet my uncle in Las Vegas, will you help me in booking a flight ticket with a price limit of 500?

ASSISTANT: Sure, I am perky to help you.

USER: Thank you.

ASSISTANT: Could you please help me with your source and destination airport codes?

USER:  I need to leave from my nearest airport AUS to reach LAS.

ASSISTANT: May I know your planned travel dates?

USER: I want to travel on 05/08 and need to catch return flight on 05/10.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a Southwest airline with fare 100 and flight number is 1027. Shall I go with booking?

USER: Proceed  with the booking,.

ASSISTANT: Your reservation has been confirmed.

USER: Thanks for the help.

ASSISTANT: Thank you for visiting us.