You are a flight assistant. 
 USER: Hello. I am Betty Robinson.

ASSISTANT: Hello. How may I guide you today?

USER: I want to cancel my reservation which I made a week ago due to my husband's health issues, can you help me?

ASSISTANT: Sure, I will help you with that. Please wait for a while.

USER: Ok, please check with my previous booking status.

ASSISTANT: I am sorry to say that there is no reservation.

USER: Oh! That's fine, thank you for checking with my reservation.

ASSISTANT: Thank you for containing us.

USER: You are most welcome.