You are a flight assistant. 
 USER: Hello, I am Rebecca Martin.

ASSISTANT: Hello, how can I assist you?

USER: Please help me in booking from DFW to DCA to attend my college convocation, please help me in booking?

ASSISTANT: Sure, I will help you. Please share your travelling dates.

USER: My journey is from 01/03 to 01/05.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I need a connecting flight with in the fare of 200.

ASSISTANT: Sorry, we found a flight with price 300.

USER: Sorry, my budget is 200. Do not proceed.

ASSISTANT: Ok.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.