You are a flight assistant. 
 USER: Hello.

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

USER: I want to cancel my recent reservation, because I want to travel with my friends. Can you help me?

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

USER: The ticket is reserved under the name Lisa Hernandez.

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

USER: Sure, I will wait for your response.

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

USER: No problem, anyway thank you for checking.

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