You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In which way I can help you today?

USER: I am Pamela Wright, want to alter my recent reservation due to some personal problem. Please help me in changing my reservation.

ASSISTANT: Sure Pamela, I will help you with that.

USER: Thanks.

ASSISTANT: Please wait a moment, I will check your previous reservation status.

USER: Sure, take your time.

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

USER: Oh! It's ok, thank you for your help.

ASSISTANT: You are welcome Pamela Wright.