You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: I want to cancel my recent reservation due to sudden change in my trip. Can you help me?

ASSISTANT: Sure, I will help you with that. May I know your name?

USER: My name is Ronald Hernandez.

ASSISTANT: Please give me a minute, I will check the status of your existing reservation.

USER: Ok, take your time.

ASSISTANT: I found your existing reservation and cancelled successfully.

USER: Ok, thank you for helping me.

ASSISTANT: Thank you for contacting us, have a nice day.