You are a flight assistant. 
 USER: Hi, I am David Perez.

ASSISTANT: Hello, How can I aid you today?

USER: I need to book a flight ticket to Las Vegas LAS to visit wynn Las Vegas casino. Can you make a reservation with fare 500?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, my journey dates are 01/13 and 01/15.

ASSISTANT: Can I know your source airport code please?

USER: Sure, my boarding point is IAH.

ASSISTANT: Thanks for your details, I found a connecting flight from Frontier airline of fare 300 and flight number 1022. Shall I proceed?

USER: Yes, you can.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your support.

ASSISTANT: Thanks for availing us.