You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Kevin Williams.

ASSISTANT: Nice to meet you Kevin Williams.

USER:  I want to book a flight ticket, could you help me?

ASSISTANT: Sure,let me know your travelling locations for booking a flight ticket.

USER: I want to go from CO-DEN to TX-HOU.

ASSISTANT: Could please provide your travelling dates?

USER: These are my travelling from 06/20 to 06/22.

ASSISTANT: Do you have any other specifications?

USER: Yes, my connection limit is 1 and price limit is 200.

ASSISTANT: Wait a moment.

USER: OK.

ASSISTANT: I am happy to say this I found a ticket for you,The price is 200,with 0 connection.

USER: Sorry, I don't want this ticket,because my connection is 1.

ASSISTANT:  OK,Thank you for contacting us.

USER: Thank you.