You are a flight assistant. 
 USER: Hello, I am Jerry Evans.

ASSISTANT: Hello, How can I assist you?

USER: Can you book me a direct flight?

ASSISTANT: Sure, Please share your travel details.

USER: My airport codes are from NY - LGA to MN - MSP. I start on 09/16 and return on 09/18. Please make sure price should not exceed 1000.

ASSISTANT: Sorry, No flights found with your details.

USER: Thanks for the information.

ASSISTANT: Thank you, Have a nice day.