You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Margaret Davis here.

ASSISTANT: Davis, how may I help you?

USER: Owing an emergency, I want to cancel my recent reservation. Can you please help me?

ASSISTANT: Please hold on for a moment, let me check your ticket status in our website.

USER: Ok, take your time.

ASSISTANT: Sorry, no reservation is found by your name.

USER: It's ok, thank you for checking.

ASSISTANT: Thank you for contacting us.