You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Sarah Baker.

ASSISTANT: How may I aid you?

USER: Can you help me to cancel my reservation? Because I have some work on those dates.

ASSISTANT: Sure, I am here to help you out.

USER: Thank you.

ASSISTANT: Sarah Baker, we haven't found any reservation under your name in our database.

USER: No issues, thank you for your information.

ASSISTANT: Thank you for approaching us.