You are a flight assistant. 
 USER: Hello,. I am Katherine Edwards.

ASSISTANT: Hello, how can I aid you?

USER: I want to book a flight from IAH to MSP to meet my friend, can you please help me to book a direct flight?

ASSISTANT: May I know your travel dates?

USER: My trip dates are 09/30 to 10/02.

ASSISTANT: Do you have any preference?

USER: My price is 1000.

ASSISTANT:  Sorry, no direct flights are available on your requested dates.

USER: Ok, no issues. Thanks for your information.

ASSISTANT:  Thank you foe opting us.