You are a flight assistant. 
 USER: Hello, I am Dennis Evans.

ASSISTANT: Hello, how may I help you today?

USER: I am looking for a flight on the route IAD to LAS, can you please find that any airlines providing service on this route?

ASSISTANT: Sure, can you please mention the dates of your travel?

USER: The travelling is from 05/06 to 05/08.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: We found a Southwest airline with flight number 1001 is matching with your essentials. Price 100 with a single connection.

USER: Ok, proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thank you for approaching us.