You are a flight assistant. 
 USER: Hello,. I am Timothy Hill.

ASSISTANT: Hello, how can I assist you?

USER: I need to attend an investigation of murder case in San Francisco, SFO.

ASSISTANT: Ok.

USER: Will you be my helping hand in booking my flight ticket from Washington, DCA?

ASSISTANT: Sure. Please share your travel dates.

USER: 04/09 - 04/11 are my willing dates to travel.

ASSISTANT: Do you have restriction on price?

USER: 500 is the budget for my ticket.

ASSISTANT: We found a JetBlue airline flight that available on your dates with fare 100 and single connection. Shall I proceed?

USER: Proceed with my booking.

ASSISTANT: Your booking has been done.

USER: Thank you for quick service.

ASSISTANT: Thank you for opting us.