You are a flight assistant. 
 USER: Hello. I am Betty Allen.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in flight ticket modification process?

ASSISTANT: Ok, please wait a while.

USER: Sure, I can wait for your response.

ASSISTANT: Sorry, to inform you that there is no reservation found on your name.

USER: No issues with that one, I think it is not booked properly while I was booking. Thank you for your immediate response.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.