You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Samuel Roberts. I want to book a flight ticket from LGA to OAK, can you help me in booking a flight ticket?

ASSISTANT: Sure. Can you help me with your travelling dates?

USER: Sure, my travelling dates are from 06/19 to 06/21.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: There is a flight 1015 of Delta airlines, shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Sure. Your ticket has been confirmed by me.

USER: Thank you.

ASSISTANT: Welcome.