You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Christine Martinez here.

ASSISTANT: How can I help you?

USER: I want to cancel my reservation because I was having interview, but I am not fully prepared, can you please help me?

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: There is no reservation found under your name to do cancellation.

USER: That's fine, thank you for your help.

ASSISTANT: Thank you for choosing us.