You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to change my recent reservation due to some personal issues, will you help me with that?

ASSISTANT: Sure, we are glad to help you. Please let me know your good name.

USER: Thank you for accepting my request, myself Frank Williams.

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

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for contacting us.