You are a flight assistant. 
 USER: Hi. I am Brain Smith.

ASSISTANT: Hello, how can I assist you at this moment?

USER: I need to book a ticket to meet my friend for knowing the interview location and to attend the interview.

ASSISTANT: Ok. Please help me with your airport codes?

USER: Could you please help me in booking a ticket from HOU? My destination code is OAK.

ASSISTANT: How much you can afford for your journey?

USER: I can pay up to 200.

ASSISTANT: Please help me with your travelling dates?

USER: My travelling dates are 01/09 and return on 01/11.

ASSISTANT: Ok, please wait for a second. I will revert to you with the best flight.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a connecting flight with price of 100.

USER: Ok, you can proceed with booking.

ASSISTANT: Your booking has been confirmed with Hawaiian airline and flight number 1000.

USER: Thank you.

ASSISTANT: Thanks for your approach.