You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Is there any immediate help that you need?

USER: Due to my ill health, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, I am gleeful to assist you and may I know you name for checking your previous booking?

USER: My name is Sandra Wright.

ASSISTANT: Thank you for your information, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, I cannot find any ticket reservation done on your name previous that has been recorded in our data base to cancel it.

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

ASSISTANT: Thank you for reaching us, have a nice day.