You are a flight assistant. 
 USER: Hello, I am Stephen Young.

ASSISTANT: Hello, how can I provide assistance to you?

USER: As my schedule of attending an award function got postponed due to bad weather. Can you please help me in changing my existing reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: I am sorry to say there is no reservation found on your name.

USER: Ok, Thank you for your information.

ASSISTANT: Thank you so much for connecting with us.