You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Emma Turner.

ASSISTANT: How may I assist you?

USER: I need to cancel recent reservation due to postpone of my sister marriage.

ASSISTANT: Sure, we are here to help you from our agency.

USER: Thank you.

ASSISTANT: Please give me a moment to check out your reservation status.

USER: Sure.

ASSISTANT: Sorry Turner, there is no reservation found on your name in our records.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us.