You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How may I assist you?

USER: I want to book a flight ticket within single connection, can you please help me in flight booking?

ASSISTANT: Sure, we are here to help you. Please provide me your journey dates?

USER: Sure, my departure is 11/12 and my return on 11/14.

ASSISTANT: Could you please share me your price limit and connection?

USER: Sure, my price limit is 500.

ASSISTANT: May I know origin and destination codes?

USER: I am planning to surprise my parent's on there wedding day in MGM Grand Restaurant in NV - LAS and my origin from NY - EWR.

ASSISTANT: Please hold on a moment, I will check and revert to you.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no reservation found on your name. May I have your name please?

USER: My name is Sandra Jackson.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.