You are a flight assistant. 
 USER: Hi, Charles Carter here.

ASSISTANT: Hello,. How can I amend you today?

USER: I want to book a flight ticket to SFO from BOS to attend international conference about social issues.

ASSISTANT: Ok. When you want to travel?

USER: My depart is on 06/17 and return is on 06/19.

ASSISTANT: Do you have any other requirements?

USER: Yes, my budget is 500.

ASSISTANT: Thanks for your details. We found a plane Fortifier airline with a connecting flight with flight number 1008. Shall I proceed?

USER: Ok, please book it.

ASSISTANT: Reservation is done.

USER: Thanks for your support.

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