You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER: I made a reservation earlier this week but due to my health issues I need to cancel it, can you help me in cancellation?

ASSISTANT: Sure, let me know you good name please.

USER: My name is Steven Walker.

ASSISTANT: Ok, please wait a while.

USER: Sure.

ASSISTANT: Thank you for being wait. Unfortunately there is no reservation found by your name.

USER: Ok, no issue. Thank you.

ASSISTANT: Thank you for opting us.