You are a flight assistant. 
 USER: Hello, myself William Thompson.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Due to a sudden meeting at office with my client, on my boarding day. I want to cancel my recent reservation. Can you help me with the cancellation process?

ASSISTANT: Sure, I am mirthful to help you.

USER: Thank you.

ASSISTANT: Please be on hold for a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for giving your valuable time. I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: It's ok, not an issue. Thanks for your quick response.

ASSISTANT: Thank you so much for connecting with us.