You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I would like to visit Oakland, please help me in booking a ticket from DEN to OAK.

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My planned travel dates are on May 7 and May 9.

ASSISTANT: Can I know your name please?

USER: My name is Edward Hernandez.

ASSISTANT: Do you need any specifications?

USER: I need a flight with single connection.

ASSISTANT: Can I know is there any other preferences?

USER: No, thank you for asking.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1014.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.