You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Steven Johnson here.

ASSISTANT: How can I assist you today?

USER: Can you please help me in modifying my reservation details? As I have booked a flight ticket with wrong details.

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

USER: Sure, take your own time.

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

USER: Oh! May be I did a wrong booking. Thank you anyways.

ASSISTANT: Thank you for reaching us, have a nice day Steven Johnson.