You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Charles Johnson.

ASSISTANT: How can I help you?

USER: I am planning to visit ORD to meet my friend, can you please find a flight from MSP?

ASSISTANT: Sure, I will help you to book a flight. Can you please provide me your travelling dates?

USER: My planning dates are from 07/15 till 07/17.

ASSISTANT: Ok, may I know your travelling dates?

USER: I have already mentioned.

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

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a safe flight.