You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am Stephanie Martin. I planned to meet my friend in LAS, can you please help me to book a flight ticket from DEN?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: I prefer to travel on Dec 19 and Dec 21.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Is there any connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Do you have any specifications?

USER: I prefer to travel in a economy class.

ASSISTANT: I found a ticket for you with price of 100, flight number is 100, flight number is 1004 in economy class and connection is 1. Is it ok for you?

USER: Is this flight's return time is afternoon?

ASSISTANT: It is matching your requirement, the flight number is 1020.

USER: If it is normal cost then please confirm my booking.

ASSISTANT: I confirmed your ticket successfully.

USER: Thank you.

ASSISTANT: Thank you for reaching us.