You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Ryan Miller this side, I have one party to attend at Houston. Can you help me to book a ticket?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am looking to travel on 08/29 and 08/31.

ASSISTANT: Ok, can you please provide your unique airport codes?

USER: Sure, can you give me a while?

ASSISTANT: Ok, hold on for a moment.

USER: Yes, my airport codes are ORD to HOU.

ASSISTANT: Ok, hold on for a while.

USER: Ok.

ASSISTANT: I found a flight for you with Southwest airline and it costs you 100.

USER: Please book it.

ASSISTANT: Your ticket has been booked with 1021 flight number.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us, have a safe flight.

USER: You are welcome.