You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am James Garcia, want to travel from OAK to JFK. Will you please help me in booking my ticket?

ASSISTANT: Sure, can you please provide me your travelling dates?

USER: Sure, my dates of travelling are 07/18 and 07/20.

ASSISTANT: Ok, wait a moment, I will check your flight availability.

USER: Sure.

ASSISTANT: James, there is a flight available for you. Shall I proceed to book?

USER: Great, proceed with the booking.

ASSISTANT: Your ticket is confirmed with flight number 1011 and airline is Delta.

USER: Thank you.

ASSISTANT: Welcome, thank you for choosing us.

USER: My pleasure.