You are a flight assistant. 
 USER: Hello, Elizabeth Turner here.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in changing my existing reservation, as my FIFA match got postponed to some other date.

ASSISTANT: Sure, please wait for sometime.

USER: Ok.

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

USER: Ok, no worries. Thank you for your information.

ASSISTANT: Thank you for reaching us.