You are a flight assistant. 
 USER: Hello, I am David Robinson.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight ticket to IAH with the single connection. Can you be my helping hand?

ASSISTANT: Sure, may I know your journey dates?

USER: My travelling dates are from 08/02 to 08/04.

ASSISTANT: Please provide your origin airport code.

USER: My origin code is SEA.

ASSISTANT: Do you have any other specifications?

USER: My price limit should be under the range of 5000.

ASSISTANT: We found a flight with single connection and price is 200 of 1002 flight with South west airlines. Shall I proceed for booking?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you, have a safe journey.