You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: My holiday trip has been postponed. So, I would like to change my reservation which is under my name. Can you please help me with that?

ASSISTANT: Sure, can you please provide your name?

USER: Sure, my name is Kimberly Wilson.

ASSISTANT: Please give me a minute, I will find your existing reservation.

USER: Sure, take your time.

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

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for availing us.

USER: You are welcome.