You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Catherine Adams, I want to flight from 12/15 and return ticket on 12/17 to meet my friend.

ASSISTANT: Sure, can you please share your journey locations?

USER: Can you book a connecting flight for me? I will fly from NY-LGA to NV-LAS.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your time, sorry, no flight found on that day.

USER: Ok, thank you for helping me.

ASSISTANT: Thank you for availing us.