You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: Brenda Scott here. I am a politician, I have to meet Donald Trump. So please book my ticket from DFW to DCA.

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My itinerary dates are 12/26 and 12/28.

ASSISTANT: The Frontier airline with flight number 1018 is available having fare as 300 and connection as 1, is it ok for you?

USER: I can afford 200 for my ticket.

ASSISTANT: Sorry, there is no flight with your requested fare limit.

USER: It's ok, thank you.

ASSISTANT: You are welcome, have a great day.