You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gregory Evans.

ASSISTANT:  Gregory Evans. How may I assist you?

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

ASSISTANT: Sure, can you provide me with the travel dates?

USER: Sure, I would like to take off on Dec 17 and return on Dec 19.

ASSISTANT: Give me a moment.

USER: Ok, but please make sure that the price limit does not exceed 500.

ASSISTANT: Hawaiian airlines with flight 1005 is providing service on your route with price limit of 100.

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is booked  in the economy class with double connection.

USER: Thank you for your help.

ASSISTANT: Thank you approaching us.

USER: You are welcome.