You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: My holiday vacation has been postponed.Can you please help me for cancelling the recent reservation?

ASSISTANT: Sure. Please provide your name.

USER: My name is Sarah Taylor.

ASSISTANT: Ok. Sarah, there is no reservation with your name.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Most welcome.