You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Ok, please mention your name to check with your reservation.

USER: Sure, my name is Donna Gonzalez.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: There is no active reservation by the name of Donna Gonzalez, sorry for the inconvenience.

USER: That's ok, thank you.

ASSISTANT: Have a nice day.