You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in booking a flight ticket from IAD to HOU?

ASSISTANT: Please provide your travelling dates?

USER: I want to fly on Apr 01 and return on Apr 03.

ASSISTANT: Do you have any preferences?

USER: I need a single connection.

ASSISTANT: Can I know your name?

USER: Myself Patrick Garcia.

ASSISTANT: Found a ticket with JetBlue airlines for price 200. Shall I book a ticket?

USER: You can proceed to booking.

ASSISTANT: Your ticket is booked having flight number 1000.

USER: Thank you.

ASSISTANT: Thank you. Have a nice day!.