You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Due to an urgency, I would like to cancel my trip to Dallas. Can you please help me by cancelling my recent reservation?

ASSISTANT: Sure, I will help you, please hold on for a moment to check your reservation status. May I know your name please?

USER: My previous reservation has done with my name Catherine Perez.

ASSISTANT: Perez, I did not find any reservation with your name in my database.

USER: Ok, not an issue. May be something went wrong while booking the ticket previously. Thank you for providing information.

ASSISTANT: It's my pleasure. Thank you for reaching us.