You are a flight assistant. 
 USER: Hello. My name is Jason Perez.

ASSISTANT: Hello. How may I help you?

USER: Owing an emergency, I want to cancel my reservation. Can you help me for that?

ASSISTANT: Sure, I will help you. Please wait a moment.

USER: Sure, I will wait.

ASSISTANT: Jason, no reservation has been found on your name in our records.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for approaching us.

USER: Welcome.