You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Janet Perez.

ASSISTANT: What can I do for you Perez?

USER: I want to cancel my reservation because my friend is in hospital I need to look after him. Can you please help me?

ASSISTANT: Sure, I will help you to cancel your reservation. Give me a moment.

USER: Thank you.

ASSISTANT: Sorry Janet, there is no reservation found on your name to cancel.

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

ASSISTANT: Welcome. Thank you for choosing us.