You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Susan Hall.

ASSISTANT: How can I render you today?

USER: I want to book a flight ticket from Washington, DC - DCA to attend a Conference about Social Issues. Can you book a flight ticket with single connection?

ASSISTANT: Sure, may I know your planned trip dates?

USER: I will start my journey on 03/23 and end on 03/25.

ASSISTANT: Ok, could you please mention your landing airport codes?

USER: Sure, it is Las Vegas, NV - LAS.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: We found a flight in UA airline with a fare of 200 and the flight number is 1019. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your ticket is booked with single connection.

USER: Thanks for your assistance.

ASSISTANT: Thank you for serving you.