You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me to book a flight ticket from DCA to SFO?

ASSISTANT: Sure, I am here to help you. May I know your planned dates of journey?

USER: My journey dates are May 29 to May 31.

ASSISTANT: Is there any connection limit preference?

USER: I need a single connection of flight.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Do you have any specific time concern?

USER: No.

ASSISTANT: Could you help me with your name please?

USER: Jason Campbell here.

ASSISTANT: Thank you for sharing all the details.

USER: Ok.

ASSISTANT: Here I found a connecting flight with American Airlines and the airfare is about 300. Shall I proceed in booking with flight 1005?

USER: Ok, please proceed.

ASSISTANT: For a economy class your ticket is booked and the departure time is 16:00 hours and the arrival time is 16:00 hours.

USER: Thank you.

ASSISTANT: Thank you for reaching our agency.