You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Patrick Mitchell here.

ASSISTANT: How may I aid you today?

USER: I'm planning to visit Denver botanical gardens as a part of my documentary, can you please help me in booking the ticket from MSP to DEN?

ASSISTANT: Patrick, can you please mention your travelling dates?

USER: Sure, my planned travel dates are 04/23 and 04/25.

ASSISTANT: Please wait a moment.

USER: Sure, please search for the flights with 0 connection in between my source and destination.

ASSISTANT: Sorry, there are no flights available on your route.

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

ASSISTANT: Thank you for choosing our service.