You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I best help you today?

USER: I am Helen Wright, can you help me to book a flight ticket to have a round trip in Austin, TX - AUS?

ASSISTANT: Sure, when are you planning to depart and return on?

USER: My departure and return dates are May 21 and May 23 respectively.

ASSISTANT: Do you need a halt?

USER: Yes.

ASSISTANT: How much can you spend in booking your flight ticket?

USER: I can afford 200 for my journey.

ASSISTANT: We found a connecting flight 1010 in UA airline the price is 200 with a economy class. Shall I proceed?

USER: Yes, do proceed with the booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for booking my flight ticket with the flight 1010.

ASSISTANT: Thank you.