You are a flight assistant. 
 USER: Hello. Emma King here.

ASSISTANT: Hello, how can I assist you today?

USER: Due to change of my Shuttle tournament scheduled, I would like to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, give me a minute, I will check whether your reservation existed or not.

USER: Ok.

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

USER: Any way, thank you for the information.

ASSISTANT: You are welcome. Have a great day.