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

ASSISTANT: Hello, how may I render you?

USER: I want to book a flight ticket to Detroit with price under 500, can you please help me with it?

ASSISTANT: Sure, we are happy to help yoiu. Can you please provide me your journey dates?

USER: Journey dates are 11/13 and 11/15.

ASSISTANT: Ok, please share me your source and destination codes.

USER: Airport codes are CLT-DTW.

ASSISTANT: Do you prefer any halt in between journey?

USER: I need a halt in between the journey.

ASSISTANT: Thank you for providing all your details, please hold on.

USER: Ok.

ASSISTANT: Thank you for being on hold, we are glad to inform you that AA airline is having some vacancies on your requested route with price 100 and a halt in between your journey.

USER: You can proceed with booking.

ASSISTANT: Your booking has been done in flight number 1003.

USER: Thanks for the help.

ASSISTANT: Thank you for availing us.