You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Patrick Mitchell here.

ASSISTANT: Nice to meet you Patrick.

USER: By mistakenly, I was made a wrong reservation earlier in this week. So I want to change my reservation. Can you please help me for that?

ASSISTANT: Sure, I can help you with that. Please wait a moment, I will check your previous reservation status.

USER: Ok, take your time.

ASSISTANT: There is no previous reservation available on your name.

USER: Thank you for the information.

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