You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Shirley Phillips.

ASSISTANT: Ok.

USER: I want to visit museum at Minneapolis, MSP. can you please book a direct flight?

ASSISTANT: Ok, may I know your journey dates?

USER: My depart is on 04/05 and return is on 04/07.

ASSISTANT: Could you please provide me your source airport?

USER: Source code is New York, LGA.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, no flights found with your given details.

USER: No problem. Thank you.

ASSISTANT: Thank you for opting us.