You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your good name, Please? How can I assist you for the day?

USER: My good name is Mathew Thomas. Can you assist me with booking a plane ticket to Austin as I have to attend my friend's marriage?

ASSISTANT: Sure, We are here to assist you. May I know your airport codes, Please?

USER: The airport codes are from CTL to AUS. I need a stopover in my travel.

ASSISTANT: May I know your travel dates, Please?

USER: My scheduled travel period is 04/05 to 04/07.

ASSISTANT: May I know, Do you have any restriction on price limit?

USER: My price limit is 500.

ASSISTANT: Thank you, For providing valuable information.

USER: Ok.

ASSISTANT: We are very sorry to inform you that, There are no flights matching your requirments. Thank you, For making an inquiry with us regarding ticket booking.

USER: No problem, thank you for the information.

ASSISTANT: Have a great day.