You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please help me to change my reservation due to some issues?

ASSISTANT: Sure, let me know your name.

USER: Sure, my name is Michael Rodriguez from Chicago.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: We found  a reservation on your name, please provide your journey dates.

USER: Sure, my journey dates are on Feb 5th to Feb 7th.

ASSISTANT: Kindly provide your journey codes.

USER: My airport codes are ORD - DTW.

ASSISTANT: Do you need any stopover?

USER: Yes, I need it.

ASSISTANT: Thanks for the information, there is no flight available with your requirements.

USER: No worries, thank you.

ASSISTANT: Thanks for availing us.