You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: I am Daniel Jackson. I want to change my reservation due to sudden postpone of my fashion show competition at Oakland.

ASSISTANT: Ok.

USER: Can you help me in my changing reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please, wait.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for being patience, there is no reservation found on your name.

USER: Not an issue, thank you for your quick response.

ASSISTANT: Thank you for choosing us.