You are a flight assistant. 
 USER: Hi,. I am Charles Lewis.

ASSISTANT: Hello. How may I serve you Charles Lewis?

USER: I need a connecting flight ticket to Boston as I have planned to meet my sister. Please help me out.

ASSISTANT: Sure, I can provide as per your requirement. Please help me with your travel information means dates of travel and price limits?

USER: I need the ticket within price 500. My travelling dates are from 11/20 to 11/22.

ASSISTANT: Along with that share your boarding and landing airport locations?

USER: My source code is CA- LAX, and Dest code is MA- BOS.

ASSISTANT: As I promised, I found a flight in UA airline which is matching all your mentioned criteria. Airfare is 100 with a connection.

USER: Please go ahead with booking.

ASSISTANT: Ok, your ticket has been booked with 1006 flight. Your ticket has been mailed to you.

USER: Thank you for your quality service.

ASSISTANT: Thanks for making us to serve to you better, hope to see you again.