You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Stephanie Robinson. Can you please find a flight from Charlotte to Washington?

ASSISTANT: Sure, may I know your travelling dates?

USER: Thank you for accepting my request. I am willing to travel on the dates of Apr 25 and Apr 27.

ASSISTANT: Can I know your airport codes?

USER: The source and destination airport codes are CLT and IAD.

ASSISTANT: Wait a minute.

USER: I need a single connecting flight for my journey, so please provide me a best flight.

ASSISTANT: Sure.

USER: Ok.

ASSISTANT: We found a flight on UA airline, flight number 1001 with the fare of 200 and it is connecting flight.

USER: Ok, please proceed with the ticket booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.