You are a flight assistant. 
 USER: Hello,. I am Rachel Miller.

ASSISTANT: Hello, how may I oblige you today?

USER: Owing to an emergency, my badminton tournament rescheduled to future dates,. So I had a request to you to cancel my recent reservation.

ASSISTANT: Sure, we are blissful to help you. Please hold a moment, let me check your reservation with us and let you know.

USER: Sure.

ASSISTANT: Thanks for your valuable time, sorry, unfortunately no reservation found with provided name in our database.

USER:  Ok, no worries at all. Thank you for your valuable information.

ASSISTANT: Thank you for opting us, have a great day ahead.