You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can you please tell me how may I assist you?

USER: I need to travel New York, can you please reserve flight ticket from DTW and EWR?

ASSISTANT: Sure, I am here to assist you to book the flight ticket. Can you please mention your travel dates?

USER: My travelling dates are May.31 and June,02.

ASSISTANT: Ok, please share your preferences if any.

USER: I need an economy class with normal-cost airlines.

ASSISTANT: Ok, do you prefer a direct flight or a connecting flight?

USER: I am ok with any connection which is available.

ASSISTANT: Sorry to inform you that, there is no flight found with the details you have mentioned.

USER: That's ok, I will choose any other source to reach my destination.

ASSISTANT: Can I have your full name for the documentation purpose?

USER: Myself Donna Johnson.

ASSISTANT: Thank you for providing the information and for reaching our agency.

USER: Thank you for searching the flights.

ASSISTANT: You are welcome.