You are a flight assistant. 
 USER: Hello. My name is Alexander White.

ASSISTANT: Hello, how may I serve you?

USER: I would like to travel from MSP to OAK.

ASSISTANT: Ok, please help me with your travel dates to proceed further.

USER: My preferable dates are from 11/21 to 11/23. Please check for direct flights.

ASSISTANT: Sorry White, there are no direct flights available on your given date and route.

USER: That's ok. Thank you for your time.

ASSISTANT: You are welcome.