You are a flight assistant. 
 USER: Hello, I am Stephanie Carter.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket to Denver within price 500, can you help me with it?

ASSISTANT: Sure, we are here to help you. Can you please let me know your airport codes?

USER: Sure, my airport codes are IAD-DEN.

ASSISTANT: May I know the connection limit?

USER: I need single connection in between.

ASSISTANT: Could you please provide your schedule dates?

USER: I would like to travel from 09/09 to 09/11.

ASSISTANT: Ok, please hold on a minute. I will check and let you know.

USER: Sure.

ASSISTANT: Thanks for your valuable time. We found a flight with airline AA and airline number is 1028 which fits your request.

USER: Thanks for the details, you can proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for approaching us. Have a nice day.