You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Amy Jones, I need to book a flight ticket to Chicago in the month of June. Can you please help me to book a flight ticket from Charlotte?

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: Thank you for considering my request, my travelling dates are 06/18 and 06/20.

ASSISTANT: Ok, may I know your source airport code and destination airport code?

USER: Sure, my source airport code is CLT and destination airport code is ORD.

ASSISTANT: Ok, please hold on for a moment.

USER: Sure, have your time.

ASSISTANT: In my search, I found a direct flight for you. Can I proceed for booking?

USER: No, I need a single connected flight for my journey. Can you please recheck it accordingly?

ASSISTANT: Sorry, no flights are available on your route with single connection.

USER: Ok, I hope there will be a flight for my journey but it's ok. I will go with any other agency to book my flight ticket. Anyway thanks for checking the flight.

ASSISTANT: Welcome, have a nice day. Thank you for choosing us.