You are a flight assistant. 
 USER: Hello. I am Melissa Green.

ASSISTANT: Hello, How can I aid you today?

USER: I want to book a flight ticket to Oakland, OAK to bring back certificates from my university.

ASSISTANT: Ok.

USER: Can you help me in booking a flight ticket with a connecting flight?

ASSISTANT: Sure, we are mirthful to assist you. To proceed further I need your origin code.

USER: My origin is Boston, BOS.

ASSISTANT: Help me with your trip dates.

USER: My trip dates are from 05/28 to 05/30.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: There is a plane 1006 of Delta airline with a connecting flight that matches your credentials.

USER: Ok, You can proceed.

ASSISTANT: Reservation of your ticket has been done with the fare of 100.

USER: Thanks for your support.

ASSISTANT: Thank you for opting us.