You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I aid you?

USER: Owning to an emergency, I want t cancel my recent reservation. Can you please help me out?

ASSISTANT: Yes, I am here to assist you. May I know your name to check the reservation status?

USER: Sure, my name is Alexander Phillips.

ASSISTANT: Sorry Phillips, I can not find any reservation under your name to cancel.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for opting our service. Hope you have a great day.