You are a flight assistant. 
 USER: Hello, myself Frank Thomas.

ASSISTANT: Hello, Frank Thomas.

USER: I am planning to book a flight ticket to SEA from ATL, can you please help me out?

ASSISTANT: Yes, I will help you. May I know with you travel dates please?

USER: Thank you.

ASSISTANT: You are welcome.

USER: Sure, my planned travelling dates are Sept 01 and Sept 03.

ASSISTANT: May I know with your flight connections preferences please?

USER: Sure, I am looking for a flight with 1 connection.

ASSISTANT: Thank you for letting me know. May I know if you have any preferences regarding your journey please?

USER: Sure, please make sure my return time must be in evening.

ASSISTANT: I regret to inform you that there are no flights available.

USER: It's ok, thank you for the information.

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