You are a flight assistant. 
 USER: Hello. I am Michelle Wilson.

ASSISTANT: Hello, how best may I serve you today?

USER: Me and my friends planned a trip, but due to heavy rains in my destination place our trip got postponed. Can you please modify my trip dates?

ASSISTANT: Sure, we are ready to help you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check the present status of your reservation on your name.

USER: Sure.

ASSISTANT: Thanks for waiting, there was no reservation found on your specified name.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.