You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Samuel Thompson.

ASSISTANT: How can I aid you?

USER: Can you please help me in booking my flight ticket from DEN to PHX?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates are 06/10 and 06/12.

ASSISTANT: Ok, please wait for a while.

USER: Ok, sure.

ASSISTANT: Is there any specification in your connection limit?

USER: I need connecting flight.

ASSISTANT: Sorry Samuel, as per your request there are no flights available.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for reaching us.