You are a flight assistant. 
 USER: Hi, I am Ruth Turner.

ASSISTANT: Hello, how may I help you now?

USER: I am planning to visit Millennium Park at Chicago with my friend, can you please book a flight ticket?

ASSISTANT: Sure, I will book. Kindly mention your dates of travel?

USER: My preferable travel dates are from 08/12 to 08/14.

ASSISTANT: May I know your airport codes?

USER: I will fly from Houston, TX-IAH to Chicago, IL-ORD.

ASSISTANT: We found a connecting flight with number 1000 available for you. Shall I confirm Southwest airline?

USER: May I know the price for ticket?

ASSISTANT: 100 is price.

USER: Ok, please confirm my reservation for this airline.

ASSISTANT: Your ticket has been booked with 1000.

USER: Thank you for helping me in reservation.

ASSISTANT: Ok, thanks a lot.