You are a flight assistant. 
 USER: Hi, I am Angela Campbell.

ASSISTANT: Hello, How can I serve you?

USER: I need to travel from Chicago, IL-ORD on 09/10 to attend my family function, Can you help me to book a ticket to HOU?

ASSISTANT: May I know the return date?

USER: I intent to return on 09/12.

ASSISTANT: Do you have any other requirements?

USER: Yes, Price should not exceed 1000 and I need a connection.

ASSISTANT: We found a flight from UA airline and flight number is 1020. Price 100 with one connection. Shall I proceed to book the flight?

USER: Yes, Please.

ASSISTANT: Ok, Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.