You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I am Betty Young. Will you please cancel my ticket? Because I need to go for hospital to look after my grandmother.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please give me some time.

USER: Sure.

ASSISTANT: Thanks for being patient.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your given name.

USER: Ok, Thanks for the information.

ASSISTANT: Thank you for approaching us.