You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I need to go to Chicago to enjoy Innovation Festivals with my college friends.

ASSISTANT: Sure, I am glad to help you, May I know your travelling dates?

USER: Can you make a reservation with a single connection? Sure, my scheduled dates are 09/21 and 09/23.

ASSISTANT: May I know your airport codes?

USER: Sure, I am heading from IAH to ORD.

ASSISTANT: Please mention your price limit?

USER: Sure, it will be helpful if price limit is 500.

ASSISTANT: There is a Southwest airline which matches your requirements. Shall I proceed with 1017 airline?

USER: Yes, please proceed to book.

ASSISTANT: Before that I need your name to proceed further?

USER: Sure, Anna Clark here.

ASSISTANT: Your booking has been confirmed. Thank you for approaching us.

USER: Thanks for your assistance.