You are a flight assistant. 
 USER: Hi, I am Debra Green.

ASSISTANT: Hello, how may I succour you?

USER: I want to book a flight ticket on 12/06 and return on 12/08, can you help me with it please?

ASSISTANT: Sure, do you need a whistle stop in between?

USER: Yes, I need a stop over in the journey.

ASSISTANT: Kindly share your airport codes to proceed.

USER: Sure, my airports codes are IL-ORD and NY-EWR.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: It's unfortunate that there are no flights available on your requested dates.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for choosing us.