You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Christopher wright here. Reserve a flight ticket from IAH to DEN.

ASSISTANT: Sure, may I know your travelling dates?

USER: I will be starting form Houston on 09/21 and reach Denver on 09/23.

ASSISTANT: There is a flight with 0 connection limit, do you fine with that?

USER: I need a connecting flight.

ASSISTANT: Sorry, there is no flight with 1 connection limit.

USER: OK, not a problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you.

ASSISTANT: Have a nice day.