You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I need to travel Phoenix, can you please reserve flight ticket from MSP and PHX?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are Dec,12 and Dec,14.

ASSISTANT: Is there any class preference?

USER: I need economy class with direct flight is preferred.

ASSISTANT: Do you have any other requirements?

USER: My depart time should be in the morning.

ASSISTANT: May I know your name please?

USER: Myself Michael Collins.

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

USER: Oh! Sad to hear that. Anyway, I will find another alternative to complete my journey.

ASSISTANT: Thank you for opting us.

USER: Thank you for the information.