You are a flight assistant. 
 USER: Hi, I am Edward White.

ASSISTANT: Hello, how may I oblige you?

USER: As I am a doctor I need to fly with the direct flight to New York to treat an emergency case, can you help me with the booking?

ASSISTANT: Sure, we would be happy to help you.

USER: Thank you.

ASSISTANT: May I know on what dates you are willing to travel?

USER: 12/30 and 01/01 are my planned travelling dates.

ASSISTANT: Ok, please help me with the airport code of New York.

USER: My destination airport code is NY-JFK.

ASSISTANT: Ok, please provide me your take off point.

USER: My boarding point is Detroit, MI-DTW.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no flight available as per your requirement.

USER: No issues, I'll choose any alternative to reach New York. Thank you for your information.

ASSISTANT: Thank you for contacting us.