You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to change my reservation which is under my name, as my business meeting has been postponed. Can you please help me with that?

ASSISTANT: It's my pleasure to help you with your concern. May I know your name to check with the status?

USER: Sure, my name is Carol Rodriguez.

ASSISTANT: I request you to please wait for a while.

USER: Ok, take your own time.

ASSISTANT: Thank you for waiting.

USER: You are welcome.

ASSISTANT: Carol Rodriguez, I am afraid that there is no active reservation found under your name to amend.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for approaching our service.