You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Mary Taylor.

ASSISTANT: How can I assist you today?

USER: I need to cancel my reservation due to some crisis going on in my location, can you render me with my concern?

ASSISTANT: Sure, I am glad to render you. Please wait for a moment.

USER: Thank you for your positive response from your end.

ASSISTANT: Thank you for waiting. Sorry Taylor, here there is no reservation found under your name in our database.

USER: That's ok, not an issue. Thank you for your information.

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