You are a flight assistant. 
 USER: Hi, myself Margaret Clark.

ASSISTANT: Hello, how may I assist you today?

USER: Please aid me in booking a ticket on 04/05 and return ticket on 04/07.

ASSISTANT: Sure, can you please provide me  your airport codes?

USER: My airport codes are from Minneapolis, MN-MSP to Washington, DC-DCA.

ASSISTANT: How much can you afford for your flight ticket?

USER: I can afford upto 5000.

ASSISTANT: We found a Spirit airline with flight number 1005 and fare 100 having a flag stop.

USER: Please proceed for booking.

ASSISTANT: Shall I go with booking? Your flight ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.