You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Sandra Davis, want to cancel my trip because of some reason. Can you done this for me?

ASSISTANT: Sure, I am glad to help you. Please wait, I will check your reservation status first.

USER: Sure, take your time.

ASSISTANT: Davis, there is no reservation found under your name in our database.

USER: That's fine, not an issue. Thank you for your information.

ASSISTANT: You are welcome and thank you for choosing us.