You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER:  I am Shirley Jones. I want to book a ticket to Oakland, CA-OAK to attend my cousin wedding. Can you book a connecting flight?

ASSISTANT: Sure, can you please share your airport locations?

USER: I will depart from TX-DFW.

ASSISTANT: Ok, may I know your scheduled dates?

USER:  My travel dates are 05/20 and 05/22.

ASSISTANT: Can I have your price limit?

USER: Make sure price should not exceed 200.

ASSISTANT: Ok, please hold a minute. Thanks for your time, sorry, no flight found on that day.

USER: Ok, thanks for your service.

ASSISTANT: Thank you for picking us.