You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I serve you?

USER: Due to some health issues, I could not attend my documentation.So I would like to change my existing reservation.

ASSISTANT: Ok.

USER: Can you please help me in change my reservation?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: May I know your good name?

USER: My name is Amanda Wright.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting. There is no reservation found on your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you.