You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Nancy Scott. I am planning to go for EWR from BOS, please book me a flight ticket?

ASSISTANT: Sure, we are here to help you.

USER: My travelling dates are 11/23 and 11/25.

ASSISTANT: Do you need any halt in between your journey?

USER: I need direct flight.

ASSISTANT: How much you can afford for your ticket?

USER: I can afford 200.

ASSISTANT: Ok, wait for some time I will check the availability of flights on your details and get back to you.

USER: Ok, sure.

ASSISTANT: Thanks for waiting there are no flights found on your essential details.

USER: Ok, fine thank you for checking.

ASSISTANT: Thanks for approaching us.