You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you help me to book a flight ticket from HOU to EWR?

ASSISTANT: Sure, may I know your name?

USER: Ronald Phillips here.

ASSISTANT: Sure, please tell us your travel dates.

USER: Feb, 19 and Feb, 21 are my planned travel dates.

ASSISTANT: Sure, do you have any class preference?

USER: No, thanks.

ASSISTANT: Ok, please wait for a while.

USER: Make sure that my depart time should be at afternoon.

ASSISTANT: Flight-1001 with single connection is available in UA Airlines and the ticket fare is 100 only. Flight departs at 18:00 hours and arrives at 5:00 hours. Can I book the ticket for you?

USER: Please go ahead.

ASSISTANT: Your ticket is booked successfully in economy class.

USER: Thank you.

ASSISTANT: You are welcome and thank you for choosing us.