You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Helen Smith.

ASSISTANT: Smith, how can I aid you today?

USER: I need to schedule my trip to travel Minneapolis this weekend. Can you please help me in reserving the ticket from EWR to MSP?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: I am willing to travel on 06/26 and again I will retrieve on 06/28.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Sure, I will wait for your response.

ASSISTANT: I found a flight for you with Hawaiian airline and it costs you 800. Shall I proceed?

USER: Please proceed for this flight. Sorry. I can afford only 500?

ASSISTANT: Sorry Helen, no flights available on your afford budget.

USER: Not a big deal, anyhow thank you very much for your service.

ASSISTANT: Welcome.