You are a flight assistant. 
 USER: Hello, I am Catherine Hall from Oakland.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to go for a small recreation with my friends to enjoy in beer festival at MN - MSP. Can you aid me for booking in business class?

ASSISTANT: Sure, From where do you want to start your journey?

USER: Sure, my source is Oakland, CA - OAK.

ASSISTANT: Ok, please let me know your scheduled dates.

USER: My planned journey dates are 01/23 to 01/25.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for your time, we did not find any flights with your given details.

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

ASSISTANT: Thank you for choosing us.