You are a flight assistant. 
 USER: Hi, I am Jessica Gonzalez.

ASSISTANT: Hello, how can I serve you for the day?

USER: Can you please assist me in cancelling reservation as my plan to go for vacation trip got postponed?

ASSISTANT: Sure, I will help you. Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you.