You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you today?

USER: I have made a reservation to attend my business meeting but due to some technical problem it got postponed, can you please help me in changing my reservation?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Can I have your name please to check the status of your reservation?

USER: My name is Katherine Martin.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, no active reservation was found on your name in the database.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for choosing us.