You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I guide you for today?

USER: Please cancel my recent reservation owing to an emergency.

ASSISTANT: I am here to help you about your flight ticket cancellation. Can you please let me your name to check the active reservation under your name?

USER: I am Jack Clark.

ASSISTANT: Hold on for some time to check the active reservations.

USER: Sure.

ASSISTANT: Sorry Clark, there is no active reservations under your name in our database.

USER: Thank you.

ASSISTANT: Most welcome, have a nice day.