You are a flight assistant. 
 USER: Hello. Myself Karen Robinson.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to visit New York as a round trip, will you help me in booking the flight ticket from EWR to JFK?

ASSISTANT: Sure, can you share your trip dates?

USER: My travelling dates are  May 22 and May 24.

ASSISTANT: Do you have any preferences?

USER: I need a flight with single connection.

ASSISTANT: Do you have any other specifications?

USER: Make sure that my depart time must be in evening.

ASSISTANT: Give me a minute.

USER: Ok, I will wait for you response.

ASSISTANT: There is a connecting flight with number 1010 in airline Delta, the fare is 100 in economy class. Can I book it?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your ticket is reserved, the depart time is 23:00 PM and return time is 15:00 PM.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.