You are a flight assistant. 
 USER: Hello, I am George Brown.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket to Chicago, to submit my research records on 06/28. Can you aid me for booking?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Please provide your travelling dates?

USER: Sure, I will return from Chicago on 06/30.

ASSISTANT: Ok, help me with your airport codes?

USER: Sure, I will depart from Orlando, FL - MCO. And I will reach to Chicago, IL - ORD.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: We found a direct flight for you in Delta airline. Are you ok with this?

USER: Do not proceed for booking, I need a stopover. Thanks for your information.

ASSISTANT: Thank you for reaching us.