You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What can I do for you today?

USER: Janet King here, I need a direct flight to Houston, HOU to see my grandfather as he is hospitalized so please book me a flight ticket.

ASSISTANT: Sure, please share your travelling dates?

USER: Sure, I will depart on 08/28 and return back on 08/30.

ASSISTANT: Provide your destination airport code?

USER: I will board at AUS.

ASSISTANT: We found a flight with Hawaiian airline 1026 with fare of 300 matches your schedule. Shall I proceed withbooking?

USER: Please don't proceed, I have a budget of 200.

ASSISTANT: Ok, thank you for reaching us, hope to serve you better next time.

USER: Thank you for your time.