You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Can you check the availability of flights routing from Houston to reach Austin? If found, please book me a flight ticket.

ASSISTANT: Sure, I will help you with booking.

USER: Thank you.

ASSISTANT: Please share me your airport codes?

USER: Boarding from IAH, and landing on AUS.

ASSISTANT: May I know your budget for flight ticket?

USER: My budget is 5000.

ASSISTANT: Please also provide me your planned journey dates?

USER: On 04/03, I want to start my journey and return on 04/05.

ASSISTANT: Do you need any connection in between your journey?

USER: Yes, I need a connection.

ASSISTANT: Please wait for a while and let me check the flight availability.

USER: Sure, make it as soon as possible.

ASSISTANT: Thank you for waiting, sorry there is no flight available on your journey data.

USER: That's ok, thanks for your kind information.

ASSISTANT: May I know your good name please?

USER: George Scott, is my name.

ASSISTANT: Thank you for visiting us, have a nice day ahead.