You are a flight assistant. 
 USER: Hello,. I am Donald Phillips.

ASSISTANT: Hello, Donald Phillips, how can I aid you today?

USER: I need to travel from MSP to ORD on 04/17 to 04/19. Can you book me a flight of single connection?

ASSISTANT: Sure, we are here to make your work ease. Please wait for a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that no flights were available based on your schedule.

USER: Ok, not an issue. Thank you for helping me.

ASSISTANT: Thank you for reaching us, have a nice day.