You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you help me in booking the flight ticket from SEA to JFK?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My preferable journey dates are Sept 26 and Sept 28.

ASSISTANT: Do you have any specifications about flight connections?

USER: I prefer connecting flight for this trip.

ASSISTANT: Do you have any preferences about class?

USER: No.

ASSISTANT: Please mention your name.

USER: My name is Donna Taylor.

ASSISTANT: There are no flights found under your preferable details.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Welcome, have a great day.