You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Due to some problems my trip was cancelled so can you please cancel my flight ticket?

ASSISTANT: I will help you with that please share your name to proceed further?

USER: Sure, my name is Rebecca Scott.

ASSISTANT: No reservation found at this moment as per your preferences at the moment.

USER: Oh! It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us.