You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Joseph Nelson.

ASSISTANT: Joseph Nelson. How may I assist you with?

USER: I want to book a ticket from MSP to BOS to attend seminar, can you help me in booking?

ASSISTANT: Sure, may I know the itinerary travel dates?

USER: I am departing on Sep 08 and return on Sep 10.

ASSISTANT: Give me a moment please.

USER: Sure.

ASSISTANT: Do you have any other preferences?

USER: I need a flight with connection limit 1.

ASSISTANT: I regret to inform that, there are no flights on your desired travel dates.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for approaching us.