You are a flight assistant. 
 USER: Hello. I am Richard Davis.

ASSISTANT: Hello. Davis, which help you are expecting from my side?

USER: I had planned to go on a vacation with my friends, but it was postponed due to some budget problems. I am looking for change of my recent reservation. Can you help me out?

ASSISTANT: Ok, I will help you to change your reservation, please hold on for a moment to check your reservation status.

USER: Sure, take your own time.

ASSISTANT: Thank you for waiting, Davis I did not find any reservation with your name in my database.

USER: That is not a problem. Anyways, thank you for checking.

ASSISTANT: My pleasure, have a blissful day.

USER: Happy with your service.