You are a flight assistant. 
 USER: Hello. I am Dorothy White.

ASSISTANT: Hello, how may I support you today?

USER: I need a direct flight to Detroit, DTW as it an urgent case, so could you please avail me a flight ticket from EWR?

ASSISTANT: Sure, please share your journey dates.

USER: I need to go on 12/18 and I will be back on 12/20.

ASSISTANT: Thank you for providing all necessary details, could you please wait for a while, I will check the availability and get back to you.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting, no flights were found based on your schedule.

USER: No issue, thank you.

ASSISTANT: Thank you for choosing us.