You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Thomas Lopez.

ASSISTANT: How may I assist you at this moment?

USER: I would like to change my recent reservation to new locations, would it be possible to change it?

ASSISTANT: Sure, please wait for few minutes.

USER: Sure, take your time.

ASSISTANT: There is no existing reservation found on your name in our records.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for reaching us.