You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Kenneth Turner here. I would like to meet my cousin at Minneapolis, please help me in booking a ticket from OAK to MSP.

ASSISTANT: May I know your travel dates?

USER: My planned travel dates are on Jan 31 and Feb 02.

ASSISTANT: Do you have any preferences?

USER: I would like to depart in the evening time.

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

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.