You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Brenda Gonzalez.

ASSISTANT: How can I help you?

USER: Can you help me in cancelling my recent reservation, as my exam is postponed?

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: Give me a minute to check the previous reservation.

USER: Sure.

ASSISTANT: Thanks for giving your valuable time. We did not find any reservation on your name.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for availing us.