You are a flight assistant. 
 USER: Hi, Deborah Young here.

ASSISTANT: Hello, how may I help you?

USER: I need to book a flight ticket from JFK to PHX to enjoy Innovation festivals. Can you help me in booking a direct flight?

ASSISTANT: Sure, please share your journey dates?

USER: Sure, my departure and arrival dates are 14 Dec and 16 Dec.

ASSISTANT: Do you have any other specifications to be met?

USER: I would prefer depart time at evening.

ASSISTANT: Are you looking for an class preferences?

USER: No.

ASSISTANT: Sorry, no flights found on your given details.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for choosing us.