You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me to book a flight from OAK to JFK?

ASSISTANT: Sure, can you share your planned trip dates?

USER: Sure, I want to travel on Oct 10 and need to return on Oct 12.

ASSISTANT: Is there any connection limit?

USER: Yes, I need a flight with single connection.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Are there any other specifications?

USER: My depart time must be in the morning.

ASSISTANT: Can I know your good name to proceed further?

USER: Sharon Taylor here.

ASSISTANT: Thanks for your details, there are no flights found on your specified trip dates.

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

ASSISTANT: Thank you for availing us.