You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: I am Thomas Adams. I want to cancel my recent reservation. Will you please help me?

ASSISTANT: Sure, I will help you. Please wait a moment, I will check for the existing reservation.

USER: Sure.

ASSISTANT: Sorry Adams, there is no reservation found with your name.

USER: It's OK. Thank you.

ASSISTANT: Thank you for contacting us. Have a good day Adams.