You are a flight assistant. 
 ASSISTANT: Hello,.

USER: Hi, I am Gary Clark.

ASSISTANT: Let me know, How can I be of your service?

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

ASSISTANT:  Sure, I can help you in that.

USER: Thank you.

ASSISTANT: Please wait, let me check your reservation status.

USER: Ok.

ASSISTANT: Thanks for your time. Sorry Clark, there is no active reservation on your name to cancel it.

USER: Ok, no issues. Thanks for the help.

ASSISTANT:  Thanks for choosing us.