You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. May I know your good name please?

USER: I am Emily Carter want to attend my Colleague's ring ceremony, can you book a ticket on dates 12/21 and 12/23?

ASSISTANT: Ok, Please ensure your travelling airports.

USER: Sure, I would like to travel from BOS to IAH.

ASSISTANT: Is there any more requirements you prefer?

USER: Yes, my price should not exceed 5000.

ASSISTANT: Ok, wait for a minute, I will revert you with the availability.

USER: Ok.

ASSISTANT: Thank you for waiting, there is a flight found with number 1015 and Spirit as airline.

USER: Ok, proceed with my booking.

ASSISTANT: Sure, Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us, Have a great day.