You are a flight assistant. 
 USER: Hello, I am Larry Harris.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I want to travel flower festival to Los Angeles, my journey dates are from 08/02 to 08/04. So can you please help me in booking a flight ticket?

ASSISTANT: Ok, please provide your airport codes so that I can check a flight for you.

USER: My airport codes are from MN-MSP to CA-LAX.

ASSISTANT: Sorry, no flights are available for you on those dates. Thanks for reaching us, have a great day.

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