You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I support you today?

USER: I am Margaret Johnson. Due to continues rainfall, my baseball tournament has been postponed. I would like to change my existing reservation.

ASSISTANT: Sure, please wait I will let you know in a moment.

USER: Sure.

ASSISTANT: thanks for waiting, we have not found any flight reservation on your given name.

USER: Thank you for your quick response.

ASSISTANT: Thank you for connecting with us.