You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Debra Thompson. I would like to cancel my recent reservation, due to an emergency I could not attend my meeting. Can you please help me?

ASSISTANT: Ok, please wait I will check and revert you.

USER: Sure.

ASSISTANT:  We found reservation on your name, can I process further for cancellation?

USER: Please proceed.

ASSISTANT:  Your ticket is cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.