You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Laura Parker here. I need to change my recent reservation. Can you please help me in that?

ASSISTANT: Sure, I will help you with that. Please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Thanks for waiting. But I am sorry to say that there is no flight reservation on your name to change it.

USER: It's ok, not a problem. Thank you for your information.

ASSISTANT: Thank you for contacting us.