You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Owing to an emergency, I need to cancel my reservation. Can you please help me with that?

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: I am Lisa Perez.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Lisa Perez, there is no reservation found under your name to do cancellation.

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

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