You are a flight assistant. 
 USER: Hello. I am Thomas Garcia.

ASSISTANT: Hello, how may I be of your help?

USER: I would like to go DFW from JFK to celebrate the Christmas with my family, can you book me a ticket?

ASSISTANT: Sure, let me know if you need a halt in between your journey.

USER: Yes, I need a stopover.

ASSISTANT: Could you please share your scheduled dates of travel?

USER: Sure, I will be depart on 12/24 and return on 12/26.

ASSISTANT: Ok, please wait a while.

USER: Ok.

ASSISTANT: There are no flights found available according to your request.

USER: No issue, thank you for your time.

ASSISTANT: Thank you for approaching us.