You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Mary Robinson. I would like to go for water rafting with my friends. So, I need a flight to Oakland, OAK.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travel dates are 07/10-07/12.

ASSISTANT: Please share me your source point.

USER: I will start from Minneapolis, MSP.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok. I will go for other alternative. Thank you.

ASSISTANT: Thank you for reaching us.