You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me in booking a flight ticket from Las Vegas, LAS to reach Charlotte, CLT?

ASSISTANT: Sure, can you share your journey dates?

USER: My journey dates are from Oct 29 to Oct 31.

ASSISTANT: Do you have any preferences?

USER: I prefer only economy class.

ASSISTANT: May I know your name?

USER: My name is Mary Walker.

ASSISTANT: There is a connecting flight with number 1001 in airline JetBlue, the fare is 200 in economy class. Can I book it?

USER: Sure, you can proceed for booking.

ASSISTANT: Your ticket is reserved, the depart time is 22:00 PM and return time is 19:00 PM.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us.