You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Mark Davis, I am planning to for IAH on 01/17. Can you please help me to book my flight ticket.

ASSISTANT: Sure, may I know your destination airport and return date please?

USER: Ok, My destination code is PHX and my return date is 01/19.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: I found a ticket for you with connections limit 1 and cost of this is 200. Shall I proceed to book?

USER: Can you please search for connection limit 0.

ASSISTANT: Sorry Davis, there is no flight for connections limit 0.

USER: Ok, thank you for your service.

ASSISTANT: Thank you, for contacting us.