You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: Owing to an emergency condition, I would like to cancel my recently done reservation, can you please help me in this?

ASSISTANT: May I know your name?

USER: Sure, my name is Margaret Scott.

ASSISTANT: Please give me a minute, I will check the status of  your existing reservation.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: That's fine.

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

USER: Thank you for your service.