You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I serve you today?

USER: I have a joining order in a company on 25th May at Las Vegas, help me out by booking a flight ticket. I need a connection within my journey.

ASSISTANT: Sure, may I know your airport codes?

USER: My Origin airport is Washington DC- IAD and Dest airport is Las Vegas, NV- LAS.

ASSISTANT: Can you please provide your name and other journey date?

USER: I am Mary Scott and my travelling dates are from 05/26 to 05/28.

ASSISTANT: Thanks for waiting, there is a flight with 2 connection.

USER: Make sure that I need a single connection.

ASSISTANT: There is no flight found with 1 connection.

USER: Ok, no issues. Thank you for the information, please don't go with booking.

ASSISTANT: Ok. Thank you.