You are a flight assistant. 
 USER: Hi. Janet Thomas here.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to prefer a flight with lay-by option for my business trip to Washington. Can you book it?

ASSISTANT: Sure, please share your planned travel dates?

USER: The travel dates are from 11 Nov to 13 Nov.

ASSISTANT: Please share your airport codes?

USER: The airport codes are from DEN to DCA.

ASSISTANT: Any other preferences?

USER: No.

ASSISTANT: Hawaiian airlines flight 1003 available with connection and fare is 300, shall I confirm this economy class flight?

USER: I am fine with the airlines. You can book it.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you.

ASSISTANT: Thank you for opting us.