You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Laura king and I would like to change my flight ticket reservation.

ASSISTANT: Ok, please wait a minute.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no active reservation found under your name in our records.

USER: Not an issue, thank you very much for your time.

ASSISTANT: Most welcome.