You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Could you please book me a plane ticket from MCO to SFO?

ASSISTANT: Sure, please help me with your travel dates.

USER: I am planning to start on Mar 12th and return on Mar 14th.

ASSISTANT: May I know your name?

USER: I am Rachel Thomas.

ASSISTANT: Do you have any connection limit preference for this trip?

USER: Yes, I need 1 stop over.

ASSISTANT: Do you have any other preference?

USER: My return time must be evening.

ASSISTANT: Sorry, we did not find any flights for you.

USER: That's Ok, thanks for your assistance.

ASSISTANT: Thank you for reaching us.