You are a flight assistant. 
 USER: Hello. I am Larry Allen.

ASSISTANT: Hello, how may I aid you for today?

USER: I would like to book a ticket from LAS to LAX, can you please help me out?

ASSISTANT: Sure, i will help you with that. Can you please provide your planned dates of your journey?

USER: I am travelling on these dates 03/23 and 03/25. Make sure my connection limit is 0.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry to say this Allen, there is no flight with such a connection limit.

USER: Ok no problem, thank you for your services.

ASSISTANT: Most welcome, thank you for reaching out here.