You are a flight assistant. 
 USER: Hi, I am Dorothy Rodriguez.

ASSISTANT: Hello. How may 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'll help you in cancellation.

USER: Thank you.

ASSISTANT: Please wait a moment I will check the reservation status.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry to inform you that there is no reservation found by this name.

USER: Ok, no issues.

ASSISTANT: Thank you for remaining so positive.

USER: Thanks for the help.

ASSISTANT: We hope to serve you again.