You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me in booking a flight ticket from JFK to DTW?

ASSISTANT: Sure, I will help you. Can I have your planned travel dates please?

USER: I want to fly on Sept 21 and return on Sept 23.

ASSISTANT: May I know your name please?

USER: Myself Andrew Perez.

ASSISTANT: Do you need a connecting flight?

USER: I need a direct airline.

ASSISTANT: May I know your other specifications?

USER: I don't have any other specifications.

ASSISTANT: Andrew Perez, no flights has been found on your planned travel dates.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for choosing us.