You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Debra Lewis here.

ASSISTANT: How can I assist you?

USER: I want to attend a seminar on automation, so please book my ticket from SEA to LGA.

ASSISTANT: Sure Debra, can I know the travel dates please?

USER: My itinerary dates are 12/27 and 12/29.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: There is a flight in UA airline with price 100, can I book it?

USER: Please book my ticket.

ASSISTANT: Your ticket has been booked with flight number 1006.

USER: Thank you.

ASSISTANT: Thank you for approaching us.