You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Helen Allen. I need to book a flight ticket from EWR to MSP, Can you please help me for booking?

ASSISTANT: On which dates you are willing to travel?

USER: I would like to travel on 01/27 to return on 01/29.

ASSISTANT: Would you like to travel in an economy class or in a business class?

USER: I am comfortable with any class.

ASSISTANT: There is a connecting flight-1028 in economy class, shall I proceed?

USER: Ok, proceed for booking.

ASSISTANT: Ok, booking is done on Spirit airlines.

USER: Thanks for your information.

ASSISTANT: Thanks for choosing us.