You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I have reserved a ticket to meet my friend but suddenly it got postponed. So please help me with changing my reservation?

ASSISTANT: Sure, will you mention your name for checking the reservation status?

USER: Myself Raymond Taylor.

ASSISTANT: Please give me a moment.

USER: Ok, sure.

ASSISTANT: Thanks for waiting, there is no reservation found under your name.

USER: Thanks for checking.

ASSISTANT: Welcome, have a great day.