You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I want to book a flight ticket from IAH to DFW, can you please help me?

ASSISTANT: Sure, can you please forward your journey dates?

USER: My planned travel dates are Mar 1 and Mar 3.

ASSISTANT: May I know your connection limit please?

USER: I am looking for a connecting flight.

ASSISTANT: May I know your name please?

USER: Myself Timothy Moore.

ASSISTANT: Please let me know, if you have any more requirements.

USER: No, other specifications. Thank you for asking.

ASSISTANT: Thank you for sharing your details. Sorry, there are no flights are available matching your journey dates.

USER: No issue, anyway thank you for checking.

ASSISTANT: Thank you for choosing us.