You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: I am Rebecca Williams.

ASSISTANT: Yes, Williams.

USER: Can you help me to cancel my reservation?

ASSISTANT: Sure, I can help you with that. Please let me check your reservation status first.

USER: Sure, take your time.

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

USER: Ok, no issues. Thank you for your time.

ASSISTANT: Thank you for reaching us.