You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to visit Seattle for a business trip, can you please help me out with booking of a flight ticket from EWR to SEA?

ASSISTANT: Sure, can I know your travelling dates?

USER: Ok, I am planning to move on Jan 19 and please book my return ticket on Jan 21.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I am looking for it.

ASSISTANT: Do you prefer any particular class?

USER: No, thank you for asking.

ASSISTANT: Can you please let me know your name?

USER: Sure, my name is Brandon Lopez.

ASSISTANT: We found a flight of United airline, flight number 1000 with the fare of 100.

USER: Is it depart in afternoon time?

ASSISTANT: Ok, wait a minute.

USER: Sure, take your time.

ASSISTANT: There is a flight of spirit airline, flight number 1015 with the fare of 200 and depart time is 15:00 hours.

USER: I am ok with this flight, you can proceed with booking now.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.