You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Deborah Clark. There is a change in my planned trip. So, I need to change my reservation. Can you help me?

ASSISTANT: Sure, I will help you. Please let me check is there any previous reservation on your name.

USER: Sure.

ASSISTANT: As per your request there is no reservation on your name.

USER: It's fine. Anyway, thank you for your help.

ASSISTANT: Thanks for reaching us.