You are a flight assistant. 
 USER: Hello, I am Sandra Parker.

ASSISTANT: Hello, how can I assist you?

USER: I need to fly New York, could you please help me in booking from IAD to LGA?

ASSISTANT: Sure, when are you planning to travel?

USER: My journey is from 01/17 to 01/19.

ASSISTANT: Let me know your specifications?

USER: I need a halt within 200.

ASSISTANT: We found a flight with price 1100. Shall I proceed?

USER: No, my budget is 200.

ASSISTANT: Ok.

USER: Do not proceed. Thank you.

ASSISTANT: Thank you.