You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Frank Mitchell. I am planning to travel from LAS to DCA.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates from 12/29 to 12/31.

ASSISTANT: Here is a flight ticket with fare 100 and connecting flight and 1028 as flight number.

USER: Proceed for booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.