You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Cynthia Hernandez here.

ASSISTANT: How may I assist you today?

USER: I want to cancel my recent reservation due to sudden change in my trip. Can you help me?

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

USER: Ok, take your time.

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

USER: Ok, no problem. Thank you for your help.

ASSISTANT: Thank you for reaching us, have a great day.