You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I help you?

USER: I want to change my existing reservation as my date with my fiancee got postponed due to my busy schedule. Can you please help?

ASSISTANT: Sure, we are mirthful to help you.

USER: Thank you.

ASSISTANT: May I know your good name?

USER: My name is Linda Phillips.

ASSISTANT: Ok, please wait a second. I will check and revert to you.

USER: Sure.

ASSISTANT: Thanks for the time, there is no active reservation on your name.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.