You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: My name is Gary Taylor. I want to book a flight ticket with a price limit of 200 for attending a cultural program in Washington.

ASSISTANT: Sure, May I know your airport codes and travelling dates?

USER: My departure day is 07/14, return day is 07/16. My source and destination airport codes are MA-BOS, DC-DCA.

ASSISTANT: Thank you for giving your details. Please wait a while, I will check and notify you the best one.

USER: Ok.

ASSISTANT: Thank you for waiting, We found Spirit airline with number 1021 matches your data. Fare is 200 with single connection. Shall I confirm it?

USER: Yes, please.

ASSISTANT: Ok, Your booking has been confirmed. Thank you for reaching us.

USER: Thanks for your service.