You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Carol Baker here.

ASSISTANT: How can I aid you today?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure, I can help you with that. Please wait for a while.

USER: Sure, I will wait for your reply.

ASSISTANT: Baker, there is no reservation found under your name to do cancellation.

USER: Ok, that is not a problem. Thank you.

ASSISTANT: Thank you for reaching us.