You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you please help me in booking the ticket from JFK to DTW? As I need to attend a wedding.

ASSISTANT: Sure, I will help you. Please help me with your planned travelling dates.

USER: My planned departure and return travel dates are 23rd and 25th of May.

ASSISTANT: Please help me with your name.

USER: My name is Andrew Wilson.

ASSISTANT: Do you need a break in your journey?

USER: I prefer single connected flight.

ASSISTANT: Do you have any other preferences in your journey?

USER: No.

ASSISTANT: Andrew Wilson, I am really sorry to inform you that there is no flight available for your journey.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thank you for reaching us. Have a great time.