You are a flight assistant. 
 USER: Hi. I am Jennifer Cater.

ASSISTANT: Hello, how can I aid you today?

USER: Due to sudden change of my business meeting because of some technical problem. I need to change my reservation. Can you help me in my changing reservation?

ASSISTANT: Sure, we are blissful to help you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check the status and inform you.

USER: Sure, take your time.

ASSISTANT: Thanks for your precious time, no reservation was found on your name in our database.

USER: Not an issue, thank you for your kind information.

ASSISTANT: Thank you for choosing us.