You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I want to modify my reservation, can you please help me to change my reservation?

ASSISTANT: Sure, may I know the name to check for the status?

USER: My name is Margaret Young.

ASSISTANT: Please be on hold, I will get back to you in a minute.

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: It's okay.

ASSISTANT: Here, there is no active reservation has been found under your name in our database to amend it.

USER: Ok, not an issue. Thank you for informing me.

ASSISTANT: Thank you for reaching us.