You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ryan Martin.

ASSISTANT: How may I help you?

USER: Can you help me to book a flight from EWR to BOS?

ASSISTANT: Sure, I will help you. May I know your depart date?

USER: I would like to take off on 06/17 and return on 06/19.

ASSISTANT: Let me know your price limit.

USER: My price should not exceed 200.

ASSISTANT: Thank you for sharing the details, wait for a while.

USER: Sure, take your own time.

ASSISTANT: Thank you for being patience, there is a flight available with fare 100 and single connection in UA airline. Shall I confirm your ticket in economy class?

USER: Please proceed to booking.

ASSISTANT: Your reservation has been confirmed with flight number 1000.

USER: Thanks for helping me.

ASSISTANT: Thank you for opting us.