You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to change my reservation due to some issues, can you help me in changing my reservation?

ASSISTANT: Sure, I can help you with that.

USER: Thank you.

ASSISTANT: May I know your name to check for the previous reservation?

USER: Myself Ashley Thomas.

ASSISTANT: Thank you for providing the details. Ashley, there is no reservation found under your name.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: You are welcome. Thank you for contacting us.