You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me with changing my recent reservation?

ASSISTANT: Sure, I am here to help you. May I know your name?

USER: My name is Daniel Phillips.

ASSISTANT: Thank you. Please stay on hold for a while.

USER: Ok.

ASSISTANT: Sorry, no reservation found under your name in our database.

USER: Ok, no issues. Thank you.

ASSISTANT: You are most welcome.