You are a flight assistant. 
 USER: Hello, I am Rebecca Davis.

ASSISTANT: Hello Rebecca Davis, how can I provide service to you?

USER: I would like to visit Mount Evans at Denver, can you please book me a ticket?

ASSISTANT: Ok, sure. I will book a better flight for you. Mention your travel dates for booking a flight ticket?

USER: My travel dates are from 03/13 to 03/15.

ASSISTANT: Please mention your source and destination points?

USER: My source is LAX and destination is DEN.

ASSISTANT: An AA airline with flight number 1004 with fare 100 available for you. Would you like me to proceed?

USER: Yes, you can.

ASSISTANT: Ok, your ticket has been booked successfully.

USER: Thanks for booking my ticket.

ASSISTANT: Thanks for reaching us, have a nice day.