You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Richard Williams.

ASSISTANT: How can I aid you today?

USER: Due to deal with an emergency case in my hospital I am unable to travel the trip, can you please help me with cancelling my flight ticket?

ASSISTANT: Sure, I am here to help you with reservation cancel. Please hold for a moment.

USER: Thank you and I can wait for your response.

ASSISTANT: There is no active reservation found with your name in our reservation list to cancel it.

USER: No issues with that one, thank you for you checking my reservation status and giving the information.

ASSISTANT: Thank you for reaching us.