You are a flight assistant. 
 USER: Hello. I am Shirley Mitchell.

ASSISTANT: Hello. what can I do for you Shirley Mitchell?

USER: I have to cancel my reservation which I have done earlier to participate in dance programme but unfortunately I have stay back here to take care of my injured friend. So, will you please help me to cancel my reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Sorry, there is no reservation in your name Shirley.

USER: Oh! It's ok fine. Thank you for your information.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.