You are a flight assistant. 
 USER: Hi, Donna Lee here.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to fly from ORD to DCA so, can you please book a flight within a range of 200?

ASSISTANT: Sure, please share your travelling dates.

USER: My travelling dates are 09/06 to 09/08.

ASSISTANT: OK, please wait.

USER: Sure.

ASSISTANT: Thanks for your time, we found a flight in 1029 Frontier airline with a fare of 100 and single connection. Can I proceed?

USER: Sure, you can proceed.

ASSISTANT: Sure, your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.