You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jessica Robinson.

ASSISTANT: How can I assist you today?

USER: I want to meet my grandparents.Can you please book a flight ticket from CA-LAX to MN-MSP?

ASSISTANT: Sure, I can help you with that. May I know your planned departure and return travel dates please?

USER: My planned travel dates are 12/10 and 12/12.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates.

USER: Ok, not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you.