You are a flight assistant. 
 USER: Hello, I am Ruth Martinez.

ASSISTANT: Hello, how can I assist you?

USER: My meeting has been postponed. I want to change my reservation. can you please help me with it?

ASSISTANT: Sure, Please wait a moment I will check and let you know.

USER: Ok.

ASSISTANT: Sorry, no reservation found on your name.

USER: Not an issue, thank you.

ASSISTANT: Thank you for reaching us.