You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am planning to visit one of the historical place at Boston, MA-BOS, can you help me in booking a flight ticket?

ASSISTANT: Sure, I can help you in booking a ticket.

USER: Thank you.

ASSISTANT: Can you assign me the travelling dates? To check with flights availability.

USER: Sure, I am planning to leave on 07/11 and return back on 07/13.

ASSISTANT: Ok. Please forward me the departure point.

USER: Sure, it's New York, NY-EWR.

ASSISTANT: To proceed further, mention your name.

USER: I am Helen Turner.

ASSISTANT: Ok, Helen Turner.Please wait for sometime.

USER: Sure.

ASSISTANT: Thanks for your time.There is a connecting flight, with Frontier airline.

USER: You may proceed if price id under 200.

ASSISTANT: Sure, your ticket is done with booking with flight number 1011, price is 100. Thanks for reaching us, have a nice day.

USER: Thank you for your help.