You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I'm Kathleen Young here. I want to travel from MN-MSP to MA-BOS, can you please help me to book a ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: My preferable dates are from 08/17 to 08/19.

ASSISTANT: Ok, wait for a minute.

USER: Sure. My connection limit is 0.

ASSISTANT: Sorry, no flight's found on your request.

USER: Ok, fine. Thank you for your kind information.

ASSISTANT: Thank you for contacting us.