You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I need to cancel my reservation as my appointment with my doctor cancelled. Can you help me with it?

ASSISTANT: Sure, I am glad to help you. May I know your name/.

USER: Thomas Parker is my name.

ASSISTANT: Ok, please wait a moment.

USER: Surew.

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

USER: Ok, thank you for your response.

ASSISTANT: Thank you for choosing us.