You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Paul Mitchell, can you please help me to change my reservation as my scheduled got changed?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Please wait for a moment to check it.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting, there is no reservation found with your name to change.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: You are most welcome.