You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you at this moment?

USER: Myself Cynthia Robinson. I would like to change my recent reservation, will you help me with that?

ASSISTANT: Sure, I will help you. Please wait for a moment, I will check the details.

USER: Ok, I will wait for your response.

ASSISTANT: Thank you for waiting. Sorry, there is no reservation showing on your name.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you for your information.

ASSISTANT: You are welcome.