You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I support you today?

USER: I want to reschedule my recent reservation as my match got postponed. Can you help me in changing my reservation made on name Elizabeth Green?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

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

USER: That's Ok.

ASSISTANT: Thank you for reaching us.

USER: Thanks for your response.