You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Jerry Parker.

ASSISTANT: How may I assist you?

USER: Actually, I have  done a mistake in booking my ticket yesterday night.

ASSISTANT: Ok.

USER: I want to change my locations, can you please help me in changing my reservation?

ASSISTANT: Sure, I am here to help you. Please hold on.

USER: Ok.

ASSISTANT: No reservation found on your name. Sorry for inconvenience.

USER: It's fine. Thank you for the information.

ASSISTANT: Welcome.