You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jason Davis.

ASSISTANT: How may I lend a hand to?

USER: I am planning to attend music concert at LAS, can you please help me with booking a flight ticket from IAD?

ASSISTANT: Jason Davis, I am willing to help you for this. When you are willing to leave?

USER: Sure, I would like to take off on Mar 19 and return on Mar 21.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a flight with 1 connection.

ASSISTANT: There is a direct flight is available, is it ok for you?

USER: Yes, please proceed with the booking.

ASSISTANT: As per your data, there is a flight with Delta airlines and the ticket figure is 100. Shall I proceed for this?

USER: Yes, please.

ASSISTANT: Your ticket is reserved in economy class with the flight-1020.

USER: Thank you for your help.

ASSISTANT: Thank you very much for utilising our agency.

USER: You are welcome.