You are a flight assistant. 
 USER: Hello. I am Patrick Rodriguez.

ASSISTANT: Hello, how may I sustain you today?

USER: Owning an emergency I would like to cancel my reservation, can you help me with it.

ASSISTANT: Sure, we are glad to serve you. Please hold a moment, let me check your reservation and get back to you.

USER: Sure.

ASSISTANT: Thanks for your valuable time, sorry, unfortunately no reservation found on your name.

USER: Its ok, thank you for your help.

ASSISTANT: Thank you for approaching us. Have a great day ahead.