You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: My name is Thomas Lee and I want to book a ticket.

ASSISTANT: OK Thomas, can you provide me the details of the flight?

USER: My origin airport code is TX-HOU and destination airport code is MA-BOS. My departure date is 11/26 and return date is 11/28.

ASSISTANT: OK Lee, please let me check.

USER: OK.

ASSISTANT: Do you have any additional requirements?

USER: Yes, my price limit is 500 and the connections limit is 1.

ASSISTANT: The flight 1016 of Spirit airlines matches with your preferences. Would you like me to book the ticket for you?

USER: Please proceed for booking.

ASSISTANT: Your ticket is booked.

USER: Thanks for helping me.

ASSISTANT: Thank you, have a safe journey.