You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you please help me in booking a flight from IAD to LAS?

ASSISTANT: Sure, can you please share your travel dates?

USER: My planned dates are on June 6th to 8th.

ASSISTANT: May I know your connection limit?

USER: I prefer a connected flight.

ASSISTANT: Do you have any other requirements?

USER: I would like to depart in morning time.

ASSISTANT: Ok, please share your name.

USER: Sure, my name is Gary Phillips.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: No issues, thank you.

ASSISTANT: Thank you for reaching us.