You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Jason Wilson, CEO of ABC Pvt.Ltd. I have planned for a annual meeting in company.

ASSISTANT: Ok.

USER: But due to some emergency I had postponed it. Can you help me to change my reservation?

ASSISTANT: Sure, please wait for a while to check your details.

USER: Sure, take your time to check.

ASSISTANT: Have you got any information from our agency that your reservation is confirmed?

USER: Oh! ok. Thank you for your help. I didn't get any information regarding that.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: That's fine. Thank you.

ASSISTANT: Thank you and have a nice day.