You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Benjamin Brown.

ASSISTANT: How can I help you at this moment?

USER: I want to book a flight ticket to Philadelphia, can you please find a flight with a fare of 500 from Boston?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Could you please help me with your travelling dates?

USER: 03/20 to 03/22 are my travelling dates.

ASSISTANT: May I know your airport codes?

USER: My airport codes are from MA-BOS to PA-PHL.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is a Jetblue 1018 airline with fare of 200 and a halt in between the journey. Shall I proceed with booking?

USER: Please proceed this airline.

ASSISTANT: Your booking has been confirmed on name of Benjamin Brown.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a nice day.