You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I would like to travel to DFW, please help me with booking from EWR.

ASSISTANT: Ok, I will help you. May I know when you are willing to travel?

USER: Sure, My travelling dates are from 04/15 to 04/17.

ASSISTANT: Do you need lay by in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Can you please let me know how much you can afford for this journey?

USER: Sure, my budget is 500.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thank you for being patience. Unfortunately there are no flights found with your requirements.

USER: That's ok, thank you.

ASSISTANT: May I know your good name please?

USER: I am Alexander Hall.

ASSISTANT: Thank you for approaching us.