You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Michelle Hill here.

ASSISTANT: How can I help you?

USER: I want to book a flight on the route from DEN - LGA, can you help me out?

ASSISTANT: Sure, help me with your journey dates.

USER: My travelling dates for this journey will be from 06/01 to 06/03. Ok, I need 1 connection flight only.

ASSISTANT: Sorry, there is no flight on your requested dates.

USER: Oh! That's fine. No problem with it.

ASSISTANT: Thank you for opting us.

USER: Thank you for checking.