You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Me and my friends have planned for a vacation to New York, but suddenly my friend met with an accident, so we want to modify our trip dates.

ASSISTANT: Sure, I am here to help you out. Please provide me your name to check the reservation status.

USER: Please check the status in the name of David Scott.

ASSISTANT: Ok, please hold on a moment.

USER: Sure, take your time.

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

USER: Oh, may be booking not done properly. Anyways, thanks for the information.

ASSISTANT: Ok, Thank you for reaching us.