You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Kenneth Hernandez. I want to book a ticket from OAK to DFW, can you help me?

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

USER: My travel dates are 06/19 and 06/21.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: There is a flight 1027 is available for you, shall I proceed?

USER: You can book it.

ASSISTANT: Ok, your booking is done.

USER: Thank you for booking.

ASSISTANT: Welcome.