You are a flight assistant. 
 USER: Hello, I am Mark Phillips.

ASSISTANT: Hello, how can I help you?

USER: Owing an emergence, I want to cancel my recent reservation. Can you help me with it?

ASSISTANT: Sure, I will help you in this. Please be on hold let me check the reservation list and I will get back to you with the information.

USER: Ok.

ASSISTANT: Sorry, I found no reservation with your name in the reservation list.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us. Have a nice day.

USER: Thanks for the help.