You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I need to book a flight ticket from HOU to SEA, can you help me in booking a flight ticket?

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

USER: Sure, my journey dates are May 28 and May 30.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I prefer maximum one connection.

ASSISTANT: May I know your good name please?

USER: Sure, Melissa Green here.

ASSISTANT: We found Delta airline with economy class and flight number is 1015 with arrival time is 4:00 hours and depart time is 4:00 hours.Shall I proceed for booking?

USER: Yes, you can.

ASSISTANT: Your ticket is booked.

USER: Thank you for your assistance.

ASSISTANT: You are welcome.