You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Owing to an emergency I want to cancel my reservation, can you help me?

ASSISTANT: Ok, may I know your name please for further process?

USER: Myself Carol Miller.

ASSISTANT: Carol, please wait for a mean while to check for the availability.

USER: Ok.

ASSISTANT: Sorry Carol, there is no reservation found as per your name to cancel your reservation.

USER: No problem, thanks for checking.

ASSISTANT: You are welcome.