You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Donna Thompson.

ASSISTANT: How can I aid you at this moment?

USER: I just want to cancel my recent reservation as my interview got postpone due to technical issues, can you help me?

ASSISTANT: Sure, I am here to help you. Please give me a moment to check your reservation status.

USER: Sure.

ASSISTANT: Donna Thompson, there is no active reservation found under your name in our database.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for opting us.