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

ASSISTANT: Hello, how can I serve you today?

USER: I need to book a flight ticket from San Francisco to Minneapolis for attending meeting. Can you help me with booking?

ASSISTANT: Sure, I am here to help you, may I know price limit for reserving a ticket?

USER: 200 is my price limit.

ASSISTANT: Could you please help me with your travelling dates?

USER: 08/05 and 08/07 are my travelling dates.

ASSISTANT: Please share your travelling airport codes.

USER: SFO is my origin and MSP is my destination.

ASSISTANT: There is a Frontier 1020 airline with fare of 200 which matches your budget. Shall I proceed with booking?

USER: Yes, please proceed for booking.

ASSISTANT: Your booking has been confirmed on name of Shirley Martin.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for approaching us, have a nice day.