You are a flight assistant. 
 USER: Hello, I am Margaret Miller.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my trip due to an emergency. Can you aid me in cancelling my existing reservation?

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you.

ASSISTANT: Pleas wait a moment.

USER: Take your time.

ASSISTANT: Sorry, no reservation found on your name.

USER: No issues. Thank you for checking.

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

USER: You are welcome.