You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Daniel Perez here. Due to emergency, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Ok, I will wait.

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

USER: Anyway, thanks for the information.

ASSISTANT: You are welcome.