You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Please book me a flight ticket from IAD to SFO.

ASSISTANT: Sure, can I have your planned journey dates please?

USER: I will start on Dec 23rd and return on Dec 25th.

ASSISTANT: May I know your name please?

USER: I am Jennifer Parker.

ASSISTANT: Do you need a connecting flight?

USER: I need 1 lay by.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: I found an economy class in Frontier airlines with fare 100 and it has single connection. Can I book your ticket?

USER: Fine, please proceed.

ASSISTANT: Ok, your booking is confirmed with flight number 1001.

USER: Thanks for your support.

ASSISTANT: Thank you for reaching us.