You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Actually I have planned to attend the client meeting but due to some technical issues the meeting has been postponed. Can you help me in changing?

ASSISTANT: Sure, may I know your name please?

USER: Sure, my name is Alexander Nelson.

ASSISTANT: Ok, please wait for a while.

USER: Ok, I will wait.

ASSISTANT: Sorry, there was no reservation found with your name.

USER: No issues, thanks for your prompt response.

ASSISTANT: Thank you.