You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I best serve you today?

USER: I need to consult my family doctor, can you please book a ticket from MSP to LGA?

ASSISTANT: When would you like me to book a ticket?

USER: Sure, my planned departure and return travel dates are 20th and 22nd of Dec.

ASSISTANT: Do you prefer any lay by in your journey?

USER: I just need direct flight.

ASSISTANT: May I know your name?

USER: My name is Joseph Mitchell.

ASSISTANT: Is there any other specifications for your journey?

USER: No.

ASSISTANT: Sorry Joseph Mitchell, we haven't found any flights based on your specifications.

USER: That's fine, thank you for giving the information anyways.

ASSISTANT: Thanks for reaching us.