You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER: I want to change my recent reservation as my aunt met with an injury, help me in changing my recent reservation.

ASSISTANT: Sure, may I know your name to check the reservation list?

USER: Sure.

ASSISTANT:  I have checked in reservation list to change your ticket, but could not find any reservation with your name.

USER: I am Patrick Evans. Its ok, thank you.

ASSISTANT: Thank you for reaching us.