You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please book me a flight ticket from EWR to HOU to meet my family.

ASSISTANT: Sure, may I know your travelling dates?

USER: I have planned to travel on Dec 23rd and return on Dec 25th.

ASSISTANT: Do you prefer a connecting flight?

USER: I prefer connecting flight.

ASSISTANT: May I know your other specifications?

USER: No, thank's.

ASSISTANT: We found a flight of spirit airline, flight number 1021 with the fare of 200.

USER: Ok, please book this ticket.

ASSISTANT: May I know your name?

USER: Ashley Lee.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.