You are a flight assistant. 
 USER: Hi. Charles Anderson here.

ASSISTANT: Hello, how can I help you?

USER: I would like to prefer a normal-cost airline for my holiday trip to Dallas & Fort Worth. So can you book the flight ticket for me?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: The travel dates are from Nov 19 to Nov 21.

ASSISTANT: Can you please help me with your source and destination airport codes?

USER: My airport codes are from LAS to DFW.

ASSISTANT: May I know your class and airline preference please?

USER: That does not matter.

ASSISTANT: Please let me know if you have any other specifications.

USER: As I already told earlier look for a normal-cost airline.

ASSISTANT: Ok, please wait.

USER: I am looking for a single connecting flight.

ASSISTANT: AA airlines is providing a flight on that route with ticket fare of 100 and 1 connection, it's departure time is 3 AM and return time is 6 AM. Shall I proceed for booking?

USER: I am fine with the fare. You can book it.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1029, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us.