You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Patrick Davis.

ASSISTANT: How can I help you?

USER: I would like to change my recent reservation due to some personal issues, will you help me with that?

ASSISTANT: Sure, I am here to help you. Please wait a minute.

USER: Thank you for accepting my request, I will wait for your response.

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

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us, have a good day.

USER: Thank you for your information.