You are a flight assistant. 
 USER: Hello, I need help making my flight reservation.

ASSISTANT: Hello, may I know your name?

USER: Yes, my name is Lisa Mitchell.

ASSISTANT: Can I know your origin and destination places?

USER: I want to fly from TX - DFW on Sept 21 and will return to NV - LAS on Sept 23. Please keep in mind price limit within 1000 with only one connection.

ASSISTANT: OK, please wait for a while.

USER: Sure.

ASSISTANT: We are happy to inform you that there is flight which matches your  travelling requirement,shall I proceed?

USER: Yes, you can proceed.

ASSISTANT: Thank you for choosing us, your booking has been confirmed with the details given  flight number 1001 in Jet Blue airlines.

USER: OK, thanks for your service.

ASSISTANT: Have a great day.