You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Linda King. Owing to an emergency, I want to change an existing reservation.

ASSISTANT: Sure. Give me a minute.

USER: Sure.

ASSISTANT: Thanks for your time. We didnt found any reservation by this name.

USER: Not an issue. Thank you.

ASSISTANT: Thank you.