You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Ashley Clark here,can you aid me to change my  recent reservation?

ASSISTANT: Sure, I am glad to help you. Please wait, let me check your reservation status in our database.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you that there is no reservation found under your name in our database.

USER: No issue, thank you.

ASSISTANT: You are welcome and have a nice day.