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

ASSISTANT: Hello, how may I aid you today?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you please help me with that?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please give me a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no active reservation found on your name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for choosing us.