You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please book a direct flight ticket to Houston? I have to attend a business meeting there.

ASSISTANT: Ok, please share your travel dates?

USER: My departure date is 11/25 and please book my return ticket also on 11/27.

ASSISTANT: Can I know your departure and destination airport codes please?

USER: I would like to take off from DFW airport and destination airport is HOU.

ASSISTANT: Wait a while please.

USER: Sure.

ASSISTANT: As per your request there is a flight with connection limit 1 and fare 100, shall I proceed for booking?

USER: Yes, I am ok with this airline, please proceed.

ASSISTANT: On whose name do you want to book the ticket?

USER: Sure,  my name is Raymond Allen. Can you please recheck is there any direct flight available in this airline service?

ASSISTANT: As per your request there is no flight with connection limit 0.

USER: It's ok no problem, I will go with another airline. Thank you for your information.

ASSISTANT: Thank you for opting us.