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

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket to New York to visit One World Trade Center. Please help me out.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can I know when you want to travel?

USER: My travelling dates are from 12/06 to 12/08.

ASSISTANT: Ok, please help me with your airport codes.

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

ASSISTANT: Do you need any halt in between your journey?

USER: YES, I need a halt.

ASSISTANT: Wait a minute please.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a flight with number 1028 and airline Frontier at a price of 900 with 1 connection.

USER: Please proceed.

ASSISTANT: Sure, your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a nice day.