You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Samuel Taylor. I want to book a flight ticket to meet my grandfather in Boston BOS from Minneapolis MSP. Can you help me?

ASSISTANT: Ok, may I know your journey dates too?

USER: Ok, my itinerary dates are on Apr 14 and return on Apr 16.

ASSISTANT: May I know your connection limit?

USER: Yes, I need a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: Yes, I want to depart in the afternoon time.

ASSISTANT: Sorry to inform you, there is no flight for you on your route.

USER: That's fine, no problem.

ASSISTANT: Thanks for choosing us.

USER: Thank you for your information.