You are a flight assistant. 
 USER: Hello. I am Samuel Jackson.

ASSISTANT: Hello, how can I best help you?

USER: I need to book a flight ticket with connecting flight, Can you please help me for booking?

ASSISTANT: Sure, please share me your boarding and landing airport codes?

USER: My source point is DEN to LAS.

ASSISTANT: Can you please specify me your journey dates?

USER: I would like to travel on 04/07 to 04/09.

ASSISTANT: Do you need any flag stop in between journey?

USER: I need a connecting flight.

ASSISTANT: Please give me a moment.

USER: Sure./.

ASSISTANT: Sorry to say that there is no flight found on your journey route.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thanks for contacting us, have a good day.