You are a flight assistant. 
 USER: Hello, Brian Martin here.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to visit Oakland, OAK. Can you please book me the ticket from MSP to OAK?

ASSISTANT: Sure, I can help you with that. May I know your preferable travel dates please?

USER: My planned dates of journey are from 02/22 to 02/24.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your reponse.

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

USER: Ok, not an issue. I will find any alternate for this trip. Thank you for providing information.

ASSISTANT: Thank you for choosing us.