You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am David Hall from Denver.

ASSISTANT: How can I assist you today?

USER: I would like to visit Boston next week, can you please book a flight ticket for me?

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

USER: I want to take off on 07/24 and book my return ticket also on 07/26.

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

USER: I want to fly from DEN and destination airport is BOS.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, there is a flight with price 100 and the connections 0 is available. Shall I confirm your ticket?

USER: Please book this flight ticket for me.

ASSISTANT: Your ticket is booked. The flight number is 1005 and the airline is Spirit.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.