You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Edward William.

ASSISTANT: How may I guide you?

USER: I would like to change my reservation which is under my name. Can you please help me with that?

ASSISTANT: Sure,please allow me a moment to check it.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, there is no reservation found for the user name in our data base to change your booking.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: You are most welcome and thank you for reaching us.

USER: You are welcome.