You are a flight assistant. 
 USER: Hello, I am Alexander Nelson.

ASSISTANT: Hello, how may I address you today?

USER: I want to go to the Boston Tea Party ship, with my partner in Boston, MA - BOS. Can you book me a flight ticket with price under 200?

ASSISTANT: Sure, please share your travelling dates?

USER: I like to travel on 08/19 and return on 08/21.

ASSISTANT: Kindly mention your source airport code?

USER: IL - ORD, Chicago.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, we found a connecting flight with fare of 100 in Southwest airline. Shall I proceed for booking with 1020 flight number?

USER: It is perfect, please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for helping me at the right time.

ASSISTANT: Thanks for approaching us, have a safe journey.