You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Karen Jackson.

ASSISTANT: Ok Karen, how can I aid you today?

USER: I want to attend a wedding in Oakland.Can you help me to book a ticket from IAD to OAK?

ASSISTANT: Sure, may I know your tavel dates?

USER: I want to fly on 10/16 and 10/18.

ASSISTANT: Ok Karen, there is a single connecting flight and the price is 100. Do you want me to proceed?

USER: Yes, proceed to booking.

ASSISTANT: Karen, your booking is confirmed and the flight number is 1026.

USER: Thank you for your help.

ASSISTANT:  Thank you for choosing our agency. Have safe journey.