You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: Can you please help me in cancelling my recent reservation? As my health is not good to do journeys.

ASSISTANT: Sure, I will help you with that. Can you please give me a minute, I will get back to you. May I know your name please?

USER: Sure, my name is William Lee.

ASSISTANT: I cancelled your reservation successfully under your name.

USER: Thank you so much for your help.

ASSISTANT: Thank you for reaching us.