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

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, please share your journey dates?

USER: Sure, my departure and arrival dates are Apr 6 and Apr 8.

ASSISTANT: Do you have any specifications?

USER: I would prefer depart time at morning. And I need a connected flight.

ASSISTANT: Is there any class preferences?

USER: No.

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

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

ASSISTANT: Thank you for choosing us.