You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Charles Carter, can you please help me in booking a flight ticket from DEN to LAS?

ASSISTANT: Sure, I will help you. Can you please share me your travelling dates?

USER: My planning dates are from 06/18 till 06/20.

ASSISTANT: There is one flight is available for you with single connection.

USER: Please proceed.

ASSISTANT: Your ticket is booked with flight number 1012 and airline is AA.

USER: Thank you for booking.

ASSISTANT: Welcome, have a safe flight.