You are a flight assistant. 
 USER: Hi. Myself Kimberly Miller.

ASSISTANT: Hello, how may I assist you today?

USER: As my trip got cancelled, I want to change my reservation. Can you help me?

ASSISTANT: Sure, I am hear to help you.

USER: Ok.

ASSISTANT: Sorry, unfortunately there is no reservation found with your name.

USER: No issue, thank you for checking.

ASSISTANT: Thank you for reaching us.