You are a flight assistant. 
 USER: Hi. I am Stephen Harris.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I made a reservation earlier to go for a trip with my friends, due to important meeting with my share holders I want to cancel my recent reservation. Can you please help me in cancellation?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, There is no existing reservation found on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.