You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I serve you now?

USER: I have planned to go near to my family members but I have an important meeting in my work place. Can you please cancel my recent reservation?

ASSISTANT: Sure, please tell me your good name.

USER: I have reserved my flight in the name of Sandra Hill.

ASSISTANT: Please wait, I will get back to you.

USER: Ok.

ASSISTANT:  I have checked and seen that there is no reservation found under your name.

USER: Ok, fine thank you for informing me.

ASSISTANT: Thank you for choosing us.