You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: Due to some urgent office meeting, I am planning to cancel my recent reservation. Can you please help me for this?

ASSISTANT: Sure, may I know your name to check the reservation status?

USER: Myself Margaret Carter.

ASSISTANT: Ok, please wait for a minute.

USER: Sure, I will wait for your kind response.

ASSISTANT: Sorry, there is no reservation found on your name to cancel.

USER: Not a big problem, anyhow thank you very much for your kind information.

ASSISTANT: Thank you for choosing us.