You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I planned to meet my friend in DCA, can you please help me to book a flight ticket from OAK?

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: I prefer to travel on Nov 9 and Nov 11.

ASSISTANT: Do you have any connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: May I know your name please?

USER: I am Christopher Allen.

ASSISTANT: Is there any specifications?

USER: No.

ASSISTANT: I found a ticket for you with price of 100, flight number is 1020 in economy class and connection is 1.

USER: Ok, please confirm my booking.

ASSISTANT: I confirmed your ticket successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.