You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: Katherine Clark here. I want to fly from LGA to MSP. Can you book a flight ticket on that root?

ASSISTANT: Sure, May I know the journey dates?

USER: My planned travel dates are 11/30 and 12/02.

ASSISTANT: Do you have any connection limit?

USER: I want a flight with maximum connection of 1.

ASSISTANT: Do you have any preference in return time?

USER: Make sure that, my return time should be in evening.

ASSISTANT: Is there any other requirements?

USER: No more, thank you.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: No issues, thank you for the information.

ASSISTANT: Thank you for opting us.