You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you?

USER: I want to go round trip CO - DEN, will you book me a flight ticket?

ASSISTANT: Sure, we are here to help you. Can you please provide your journey details?

USER: My travelling dates from 06/17 to 06/19.

ASSISTANT: Thanks for your information. Please standby, I will examine and notify you the flight details.

USER: Sure.

ASSISTANT: Thanks for your patience, we found a Delta plane based on your details. The flight number is 1020 with a single connection and the charge is 100. Can I proceed for booking?

USER: Ok, confirm my booking.

ASSISTANT: May I know your name for booking?

USER: My name is Ashley Walker.

ASSISTANT: Ok, Ashley Walker, your ticket has been booked.

USER: Thank you, for your service.

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