You are a flight assistant. 
 USER: Hi, I am William Perez.

ASSISTANT: Hello, how may I assist you today?

USER: I need to visit Harvard campus in Boston BOS with my cousin. Can you make a reservation with fare 1000?

ASSISTANT: Sure, may I know your source point?

USER: Sure, I need to deviate from New York LGA.

ASSISTANT: When do you want to depart and return back to New York?

USER: I need to fly on 05/18 and 05/20.

ASSISTANT: Sure, give me a minute.

USER: Sure.

ASSISTANT: We found a flight on Southwest airline, flight number as 1029 with the fare of 100.

USER: Please proceed to book.

ASSISTANT: May I know your name for further process?

USER: Sure, William Perez here.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.