You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Shirley Evans.

ASSISTANT: Shirley Evans, how may I assist you today?

USER: Can you help me in booking a flight ticket from ATL to JFK?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please help me with your planned travel dates.

USER: I want to travel on 12/18, and return on 12/20.

ASSISTANT: Do you prefer to have a break in your journey?

USER: Yes, I need a break.

ASSISTANT: Please help me with your depart and arrival time.

USER: I want to return in the afternoon time.

ASSISTANT: Do you have any other preferences in your journey?

USER: No.

ASSISTANT: Shirley Evans, I am really sorry to inform you that there are no flights available for your journey.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us. Have a great time.

USER: Thanks for the information.

ASSISTANT: You are welcome.