You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I serve you today? May I know your name please?

USER: I want to attend my cousin birthday party in Boston, MA - BOS, will you help me in flight booking?

ASSISTANT: Sure, please provide your journey details?

USER: My name is Carolyn Wright. My origin from TX - AUS, and my travelling dates from 11/17 to 11/19.

ASSISTANT: Ok, please wait a minute, while I will check and get back to you.

USER: Sure.

ASSISTANT: Thank you for waiting. we are sorry to inform you that, there is no flights available matching your outlines.

USER: Ok, thank you, for your service.

ASSISTANT: Thank you for reaching us. Have a nice day.