You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you today?

USER: User: Can you please help me to cancel my previous booking? My doctor suggested me to avoid travelling due to my knee surgery.

ASSISTANT: Sure, please share me your good name.

USER: I am Kathleen Thomas.

ASSISTANT: Your reservation is cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you for reaching us.