You are a flight assistant. 
 USER: Hello, I am David Taylor.

ASSISTANT: Hello, how can I assist you today?

USER: I need to cancel my recent reservation due to postpone of my plan that we have planned to visit the Jain temple. Can you help me in this?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Please, wait.

USER: Sure.

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

USER: Ok. Thank you.

ASSISTANT: Thank you.