You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: My name is Jonathan Hernandez. I am looking for a direct flight to Houston. Can you help me in finding a flight matching with my requirements?

ASSISTANT: Sure, could you please share me with your dates of travel?

USER: My planned journey dates are 09/18 and 09/20.

ASSISTANT: Ok, may I know your airports codes please?

USER: The airport codes are MSP and HOU respectively.

ASSISTANT: Please be hold on for a moment.

USER: Sure.

ASSISTANT: Sorry Hernandez, there is no flight found as per your travelling details.

USER: Its ok, thank you for the information.

ASSISTANT: You are welcome and have a great day.