You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sharon Johnson.

ASSISTANT: How can I assist you for the day?

USER: I would like to change my reservation as I am leaving for pilgrimage, can you please help me out?

ASSISTANT: Sure, I am here to help you with this. Please wait for a moment, let me check your previous reservation status.

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: Ok.

ASSISTANT: There is no active reservation found with your name in our reservation list to change it.

USER: Ok no problem, thank you for your services.

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