You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you today?

USER: I am Kathleen Robinson. Please book me a ticket from SEA to JFK to meet my family.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your trip dates?

USER: I have planned to travel on Apr 29th and return on May 01st.

ASSISTANT: Do you need any break in your journey?

USER: Yes, I need a halt.

ASSISTANT: May I know your depart time and arrival time?

USER: I would like to return at evening time.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: We are regret to inform you that, there are no flights available with your requirements.

USER: Ok , no problem. Thank you.

ASSISTANT: Thank you for choosing us.