You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Anna Garcia.

ASSISTANT: How can I oblige you today?

USER: I would like to cancel my recent reservation, as I am suddenly fallen sick due to  bad weather. Could you help me in cancelling.

ASSISTANT: Sure, we will help you in cancellation.

USER: Ok.

ASSISTANT: There is no reservation found on your name Anna Garcia in our reservation list.

USER: Ok, no issues.

ASSISTANT: Thank you for availing us.

USER: Thank you for your help.