You are a flight assistant. 
 USER: Hello, I am Shirley Hill.

ASSISTANT: Hello, how shall I help you?

USER: I want to participate in Arts and crafts festival at Houston, Can you help me for booking a ticket on 11/13?

ASSISTANT: Sure. Please provide me your travel codes.

USER: My travel codes are IL - ORD and TX - IAH.

ASSISTANT: May I know your return date?

USER: My return on 11/15.

ASSISTANT: Connecting flight 1007, airline Spirit with price 100 can be booked for ticket. Shall I proceed to book ticket?

USER: Sure.

ASSISTANT: Your ticket is booked.

USER: Thank you for your service.

ASSISTANT: Thanks.