You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: Owing to an emergency, I want to change my existing reservation.

ASSISTANT: Sure, I will help you in modification. Please provide me the name to check for the reservation status.

USER: Sure, Samantha Edwards here.

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

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: Ok, no issues.

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

USER: Ok no issues. Thank you.

ASSISTANT: Thank you for reaching us.