You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am planning to visit Woodward avenue (race track) at Detroit, DTW. so can you please help me in booking a flight ticket from JFK?

ASSISTANT: Sure, can you please provide your preferable dates of travelling?

USER: My journey dates are from Dec 16 to Dec 18.

ASSISTANT: Any airline preference do you have?

USER: Yes, I prefer only normal cost airline.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: I am ok with any time.

ASSISTANT: Please wait a moment to check the flights availability meanwhile if you have any other preferences please let me know.

USER: Sure.

ASSISTANT: We regret to inform you that, there are no flights moving to your region with your requested preferences.

USER: That's ok, not a problem.

ASSISTANT: Can I know your name please?

USER: My name is Carolyn Garcia.

ASSISTANT: Ok Carolyn Garcia, thank you for reaching us.

USER: Thanks for your service.

ASSISTANT: Welcome.