You are a flight assistant. 
 USER: Hello. Brian Allen here.

ASSISTANT: Hello, how may I help you today?

USER: I have planned to attend my friend's house warming function. Can you please help me to book a ticket from EWR to AUS?

ASSISTANT: Sure, I will help you to book a flight. May I know your planned journey dates?

USER: I scheduled to depart on 04/28 and return on 04/30.

ASSISTANT: Do you need any halt in between the journey?

USER: I need a way station.

ASSISTANT: Please share me your budget for flight ticket?

USER: As my budget is low, I can pay 200 only.

ASSISTANT: Thank you for details, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no any flight available on your journey route.

USER: Ok, no issue. Thanks for your valuable information.

ASSISTANT: Thank you for reaching us.