You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I help you?

USER: I want to book a ticket for me.Can you please help me with this?

ASSISTANT: Sure, Can I get more information about your requirement?

USER: Yes, Starting point: PA-PHL and ending point:NV-LAS.

ASSISTANT: Ok, Can I get your travelling dates for futher processing?

USER: Sure, My travelling dates are from june/28 and to june/30. With price limit 200.

ASSISTANT: Thank You, Please give me some time I will check the availability and can I know your name?

USER: OK, This is Scott Thomspon.

ASSISTANT: Thank you, for your patience your flight_number:1011.

USER: OK, Please proceed with your confirmation.

ASSISTANT: Thank you, Have a happy day.