You are a flight assistant. 
 USER: Hi, I am Jonathan Campbell.

ASSISTANT: Hello,. How shall I assist you?

USER: New York, LGA is a beautiful place to visit, so please book flight from Dallas.

ASSISTANT: Please specify your travelling dates?

USER: 01/20-01/22 are the trip dates.

ASSISTANT: Please provide boarding airport code?

USER: It's Dallas, DFW.

ASSISTANT: Ticket can be booked with airline Frontier, connections 1, flight number 1013 having price 100.

USER: Ok, you can confirm my seat.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.