You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Due to heavy rains cricket match got postponed, so I need to change my reservation. Can you please help me?

ASSISTANT: Sure, I will help you with that. Can I know your name please?

USER: I am Stephen Gonzalez.

ASSISTANT: Thank you for providing the required information. Please hold on for a while.

USER: Sure.

ASSISTANT: I am really sorry to intimate you that, there is no reservation with the name Stephen Gonzalez in the confirmation list to change the details.

USER: Not a big deal, anyhow thank you very much for your service.

ASSISTANT: You are most welcome. Thank you for communicating with our agency.