You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a ticket from IAD to IAH to attend Innovation festival to share my ideas.

ASSISTANT: Can I know your travelling dates?

USER: My journey dates are 01/13 and 01/15.

ASSISTANT: Do you have any preference?

USER: I need break in my journey.

ASSISTANT: Found ticket with JetBlue airlines for price 200 having flight number 1005. Shall I book a ticket?

USER: Go ahead.

ASSISTANT: May I know your name?

USER: Donald Clark here.

ASSISTANT: Ticket is booked.

USER: Thank you so much.

ASSISTANT: Thank you.