You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Paul Lopez here. I was planning to attend a wedding in Los Angeles, but now I want to change my reservation. Can you please help me?

ASSISTANT: Sure, please wait for a moment to check.

USER: Ok, please check with my previous booking and let me know the status. I will be waiting for your response.

ASSISTANT: Sorry to say, no reservation found on your name.

USER: Oh! That's fine. Thank you for checking anyways.

ASSISTANT: Thank you for reaching us, have a nice day.