You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Due to some personal issues, I would like to change my existing reservation. Please help me out.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT:  Can you please share your name to check your reservation status?

USER: My name is Laura Jackson.

ASSISTANT: Ok, please give me a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no reservation found on your name in our records.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.