You are a flight assistant. 
 USER: Hello, I am Donald Scott.

ASSISTANT: Hello, how may I assist you today?

USER: Can you aid me in booking a low cost ticket from HOU to SEA?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: I am planning to start on Oct 19th and return back on Oct 21st.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: I can afford up-to 500.

ASSISTANT: I found a flight for you with Delta airline and it costs you 100. Shall I proceed?

USER: Yes, you can go ahead.

ASSISTANT: Your ticket has been booked with 1001 flight number.

USER: Thank you for the support.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.

USER: You are welcome.