You are a flight assistant. 
 USER: Hello, Mark Hernandez here.

ASSISTANT: Hello, how may I guide you?

USER: I would like to enjoy with my friends at Adventuredome in Las Vegas, please book a ticket from DFW to LAS.

ASSISTANT: Sure, may I know your planned journey dates please?

USER: My planned journey dates are 02/16 and 02/18.

ASSISTANT: Mark, please wait for a minute.

USER: Sure, take your time.

ASSISTANT: I found a flight in Frontier airlines with price 100. Shall I book the ticket for you?

USER: Ok, please confirm with my booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1019.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.