You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I succour you?

USER: My mother said me to cancel her reservation because she is not feeling well. Can you please help me out?

ASSISTANT: Sure, can you please provide the name on which the reservation has been confirmed?

USER: The reservation was done on the name of Rebecca Moore.

ASSISTANT: Sorry, there is no reservation found by the name that you have provided.

USER: No problem, thank you for checking.

ASSISTANT: Have a nice day and take care.