You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: John Turner here.

ASSISTANT: What service that you are looking from our agency?

USER: I want to attend an Agricultural meeting in Chicago. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I am mirthful to help you with that. Can you please provide your preferable origin and destination airport codes for booking?

USER: My airport codes are from LGA to ORD.

ASSISTANT: Ok, may I know your preferable itinerary dates of travelling?

USER: My travelling dates are from 08/07 to 08/09.

ASSISTANT: Please wait a moment to check the flights.

USER: Ok, I will wait.

ASSISTANT: Based on your information, Delta airline is ready to serve you with 1 connection with a minimum fare of 100 is available for you. Shall I proceed with this?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1004.

USER: Thanks for helping me.

ASSISTANT: Thank you for using our services, hope you have a great journey.