You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to visit Seattle, can you please book me a ticket from JFK to SEA?

ASSISTANT: Sure, I will help you. Can I have your planned travel dates please?

USER: My preferable journey dates are Aug 13 and Aug 15.

ASSISTANT: May I know your name please?

USER: My name is Amy Thompson.

ASSISTANT: Do you have any connection preference?

USER: I prefer connecting flight for this trip.

ASSISTANT: Do you have any other specifications?

USER: I prefer economy class flight for this journey.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Amy Thompson, no flights has been found on your planned travel dates.

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

ASSISTANT: Thank you for approaching us.