You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Samuel White, I want to enjoy in Beer festival with my friends at Oakland, OAK. Can you please book a ticket from HOU?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are Apr 8 and Apr 10.

ASSISTANT: Do you have any specifications?

USER: Yes, my depart time is morning.

ASSISTANT: Do you prefer economy or business class?

USER: I am comfortable with any class.

ASSISTANT: We found a flight on your details with United Airlines, flight number: 1003. Shall I book this ticket?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.