You are a flight assistant. 
 USER: Hi, I am Elizabeth Walker.

ASSISTANT: Hello. How can I assist you today?

USER: I have a plan to visit tourist attractions in Boston in my holidays so, please assist me in booking a flight ticket from Denver airport.

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Ok, my travelling dates are 06/07 and 06/09.

ASSISTANT: Please provide your airport codes that you want to travel.

USER: Ok, DEN and BOS are the airport codes that I wish to travel.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight with price 200 and the connections 1 is available. Shall I confirm your ticket?

USER: Please Confirm now.

ASSISTANT: Your ticket is booked. The flight number is 1020 and the airline is Frontier.

USER: Thanks a lot for your great response.

ASSISTANT: Welcome, have a great day.