You are a flight assistant. 
 USER: Hello. I am Amy Johnson.

ASSISTANT: Hello Amy, how may I help you today?

USER: I am looking to book a flight ticket from DFW to DCA, can you please help me out?

ASSISTANT: Sure Amy, can you please help me with your dates of journey?

USER: My travelling dates are Jan 26 and Jan 28.

ASSISTANT: May I know your budget limit please?

USER: I can afford up to 5000.

ASSISTANT: There is a flight with the connecting flight of fare 100 with the Spirit airline, are you ok with this booking?

USER: Please proceed.

ASSISTANT: Ok, your booking is done with the flight number 1019.

USER: Thank you.

ASSISTANT: You are welcome, have a safe flight.