You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Nicole Martin here. I want to book a flight ticket from DEN to LAX. Can you help me in that?

ASSISTANT: Your travelling dates please?

USER: My trip dates are Apr 09 to Apr 11.

ASSISTANT: Do you have any specifications?

USER: My depart should be in the morning.

ASSISTANT: May I know about connection limit please?

USER: I need a connecting flight.

ASSISTANT: I am sorry no flights found on your route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.