You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Joshua Wright.

ASSISTANT: Nice to meet you, Joshua. what can I do for you?

USER: Can you please change my reservation as the baby shower program which I want to attend got postponed?

ASSISTANT: Ok, please wait a minute. I will check your previous reservation.

USER: Sure.

ASSISTANT: Sorry Joshua, there is no active reservation found under your name in our records.

USER: Ok, no problem. Thank you.

ASSISTANT: Most welcome.