You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Raymond White here.

ASSISTANT: How may I assist you, Raymond?

USER: For my dance competition, I want to go New York JFK. Can you book my ticket from DTW?

ASSISTANT: That's great. I'm glad to help. May I know your preferred journey dates please?

USER: My trip dates are from 12/07 to 12/09.

ASSISTANT: Raymond, there are no flights available at this moment.

USER: It's ok. Thank you.

ASSISTANT: Thank you for reaching us.