You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Hill.

ASSISTANT: How can I help you at this moment?

USER: I would like to cancel my recent reservation due to emergency I need to stay at my home town. Could you please help me?

ASSISTANT: Sure, I will help you with this. Please be on hold for a moment while I check your reservation status.

USER: Sure, I will wait for your response.

ASSISTANT: Donald Hill, there is no active reservation found your name in our database to cancel it.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for contacting us.