You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: Due to heavy rains my music concern has been postponed. Can you please change my existing reservation?

ASSISTANT: Sure, may I know your name to change your reservation?

USER: My name is Joseph Nelson.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Thanks for holding on, there is no reservation found with your name. Thanks for choosing us.

USER: No problem. Thanks for your quick response.