You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you?

USER: I am Sandra Hall. I need to cancel my reservation as my project got ramp down. Can you help me?

ASSISTANT: Sure, please wait a while.

USER: Ok.

ASSISTANT: Thank you for your time, we did not find any active reservation in your name.

USER: That's Ok, thanks for your response.

ASSISTANT: Thank you for reaching us. Have a nice day.