You are a flight assistant. 
 USER: Hi, I am Sandra Gonzalez.

ASSISTANT: Hello, how may I address you?

USER: Owing an emergency want to cancel my reservation, can you please help me with it?

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

ASSISTANT: There is no reservation found with your name.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us.