You are a flight assistant. 
 USER: Hi. I am Dorothy Roberts.

ASSISTANT: Hello, how may I assist you today?

USER: I want to fly from CLT to DEN, please book a flight ticket under price 1000.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: My travelling dates are from 12/29 to 12/31.

ASSISTANT: Ok, please wait.

USER: OK.

ASSISTANT: Thanks for waiting, we found connecting flight 1024 in Jet Blue airline with fare of 300. Shall I proceed to book?

USER: Fine, you can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for the reservation.

ASSISTANT: Thank you for reaching us.