You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Cynthia Wright here.

ASSISTANT: How may I assist you today?

USER: I am having sudden meeting in my office, can you please help me changing my reservation?

ASSISTANT: Sure, please wait for a minute.

USER: Ok, take your own time.

ASSISTANT: Sorry, I could not find any reservation with your name.

USER: That's fine, not an issue. Thank you for your information.

ASSISTANT: My pleasure.