You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Amanda Clark here. I want to travel from MSP to OAK.

ASSISTANT: Clark, please your travel dates.

USER: My trip dates are 03/31 and 04/02.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry Clark, no flight is found on your route.

USER: No problem, thank you.

ASSISTANT: Thank you for opting us.