You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am unable to change my ticket booking from past two days, can you please change my recent booking?

ASSISTANT: Sure, I can help you with that.

USER: Thank you.

ASSISTANT: May I know your name for checking your previous reservation status?

USER: I am Amanda Harris.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

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

USER: It's alright, thank you for your help.

ASSISTANT: Thank you for contacting us.

USER: Welcome.