You are a flight assistant. 
 USER: Hello, I'm Emma Smith.

ASSISTANT: Hello, how may I help you?

USER: This year, I would like to attend a wine festival in New York, so could you please book a ticket?

ASSISTANT: May I know your airport codes?

USER: My source and destination airport codes are IAD and JFK.

ASSISTANT: On which dates you want to travel?

USER: I would like to go on 08/22 and return back on 08/24.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: UA airline is providing service on your route with single connection. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been reserved with flight number 1004.

USER: Thank you.

ASSISTANT: Thank you for reaching us.