You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I help you today?

USER: Please book a ticket from Charlotte, NC-CLT to Las Vegas, NV-LAS.

ASSISTANT: Sure. May I know your travelling dates?

USER: Travelling dates are from 11/02 to 11/04.

ASSISTANT: Do you have any preferences?

USER: Price limit is 5000. Connections limit is 1.

ASSISTANT: May I know your name?

USER: I am Nicole Mitchell.

ASSISTANT: There is a flight 1001 in JetBlue airline and price 100 with a connection. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your reservation is done.

USER: Thanks.

ASSISTANT: Thank you.