You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Gary Thompson here. Book a ticket from ORD to DEN, to meet my family.

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

USER: I want to take a flight on 01/02 and 01/04.

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 proceed.

ASSISTANT: Your ticket has been booked with flight number 1010.

USER: Thank you.

ASSISTANT: Thank you for approaching us.