You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I need to change my reservation because I have given some wrong details earlier so please help me with that.

ASSISTANT: Sure, we are gleeful to help you.

USER: Thank you.

ASSISTANT: Can you please provide your name to check your previous reservation status?

USER: Sure, myself Jeffrey Wright.

ASSISTANT: Ok, please wait a moment to check.

USER: Sure, take your time.

ASSISTANT: We regret that, there is no reservation found with your name in our records.

USER: It's ok fine, no problem. Anyway, thank you for your valuable time.

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

USER: Most welcome.