You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What kind of assistance are you looking for?

USER: Can you please assist me in booking a ticket to Houston on 08/10 and return on 08/12?

ASSISTANT: Definitely. May I know where are you heading from?

USER: I would like to head from CA-SFO.

ASSISTANT: Do you need a flag stop?

USER: I need a flag stop.

ASSISTANT: How much airfare are you expecting?

USER: I am expecting upto 5000.

ASSISTANT: Lastly, I need to know what is your final destination?

USER: My destination is at TX-HOU.

ASSISTANT: Thanks for sharing your essentials. There are no flights available on your requested dates.

USER: Ok, no problem.

ASSISTANT: May I know your name?

USER: Thank you. I am Shirley Hill.

ASSISTANT: Thank you.

USER: Thank you.