You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, May I know your good name?

USER: Joshua Evans is my name. I need a flight ticket to TX - DFW to write my supply exams on 09/23. Can you please book a flight ticket?

ASSISTANT: Sure, May I know your source point?

USER: I need to start from WA - SEA on 09/22 and return on 09/24.

ASSISTANT: Do you have any other criteria to met?

USER: Yes, price limit must be less than 200 with one connection.

ASSISTANT: Ok, please wait a while.

USER: Sure.

ASSISTANT: I am glad to say that there is a flight found that matches with your requirement. The flight details are airline:spirit, flight number:1003 with 100 and 1 connection. Shall I proceed with the booking?

USER: Ok, you can proceed with booking.

ASSISTANT: Ok, your flight is processed.

USER: Thanks for booking.

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