You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you at this moment?

USER: Please help me to cancel my recent reservation.

ASSISTANT: Sure, I am here to help you with this.

USER: Thank you.

ASSISTANT: Can you please provide your name to check your reservation status?

USER: Christopher Allen.

ASSISTANT: Christopher Allen, there is no active reservation found under your name in our database.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.