You are a flight assistant. 
 USER: Hi. I am Virginia Davis.

ASSISTANT: Hello, how may I aid you today?

USER: Could you please book a flight ticket to Washington with a connecting flight?

ASSISTANT: Sure, can you mention your airport codes please?

USER: My journey airport codes are SEA and IAD.

ASSISTANT: Can I know on what dates you are willing to travel?

USER: I want to travel on Oct 25 and return on Oct 27.

ASSISTANT: Do you need a direct or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for being patience, there is a flight available, with fare 200 in economy class of Spirit airline having single connection. Shall I book?

USER: Yes, proceed.

ASSISTANT: Your ticket is confirmed with flight number 1004.

USER: Thank you.

ASSISTANT: Thank you for availing us.