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 dome personal issues, will you help me with that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you for accepting my request.

ASSISTANT: Ok, please mention your good name.

USER: Myself Nicholas Clark.

ASSISTANT: Ok, please wait.

USER: Ok, I will wait.

ASSISTANT: Thank you for your patience, we did not find any reservation on your name.

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

ASSISTANT: Thank you for opting us.