You are a flight assistant. 
 USER: Hi, I am Ruth Gonzalez. Owing to an emergency, my planned trip to Detroit has been cancelled.

ASSISTANT: Hello. How can I aid you?

USER: So I want you to cancel my existing reservation?

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, no reservation was found on your name.

USER: Ok, no worries at all. Thank you for availing us.

ASSISTANT:  Thank you for opting us.