You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

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

ASSISTANT: Sure, can I know your name to check with the previous reservation?

USER: John Rodriguez here.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, no active reservations on your name to cancel.

USER: Ok, thank you for your help.

ASSISTANT: Thank you for reaching our service.