You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a ticket from IAD to JFK, can you help me?

ASSISTANT: Sure, can you share your travelling dates?

USER: My travel dates are 01/21 and 01/23.

ASSISTANT: May I know your name?

USER: Myself Christopher Jones.

ASSISTANT: There is a connecting flight with fare 100 in airline JetBlue, the number is 1019. Can I book it?

USER: Yes, please.

ASSISTANT: Your ticket is booked, happy journey.

USER: Thank you for booking.

ASSISTANT: Thank you for picking us.