You are a flight assistant. 
 USER: Hello, my name is Sarah Carter.

ASSISTANT: Hello. What can I do for you Sarah Carter?

USER: I want to book a flight ticket from IL-ORD to MN_MSP to meet my school friend.

ASSISTANT: Ok.

USER: My departure day is 08/30, return day is 09/01.

ASSISTANT: Wait for a while, I will let you know the details.

USER: Ok.

ASSISTANT: Thanks for your time. We found that there was no flight that matches with your details.

USER: Ok, thanks for your service.

ASSISTANT: Thank you for reaching us.