You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: This is William Williams. I want to visit Chicago, IL - ORD to enjoy with my grand parents, could you please help me in booking a flight ticket?

ASSISTANT: sure, I am blissful to help you.

USER: Thank you.

ASSISTANT: Can you please share your source code?

USER: My source airport code is NC - CLT.

ASSISTANT: Kindly mention your travel dates?

USER: My travel dates are from 03/05 to 03/07.

ASSISTANT: Do you have any requirements?

USER: I need a halt in between my journey.

ASSISTANT: Thank you for your details, there is no flight in your specified route.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for opting us.