You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to visit Boston, BOS with my family.

ASSISTANT: Ok.

USER: Can you help me to book a ticket from New York, EWR?

ASSISTANT: Sure, may I know your travel dates?

USER: My journey dates are 06/17 and 06/19.

ASSISTANT: To book your ticket we need your name, can you please share me that?

USER: Christine Green here.

ASSISTANT: How much you can afford for this ticket?

USER: Price limit is 200.

ASSISTANT: Sorry there is no flight on your details.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you.