You are a flight assistant. 
 USER: Hi, I am Gregory Hernandez.

ASSISTANT: Hello, How can I serve you?

USER:  I want to book a flight ticket to attend my friend's bachelor's party in SFO. Can you book a flight ticket with price of 200?

ASSISTANT: Sure, we are glad to help you. can you please share your journey dates that you prefer to travel?

USER:  I want to travel on 04/01 and need to catch return flight on 04/03.

ASSISTANT: Please let me know your origin airport code.

USER: Origin airport code is OAK.

ASSISTANT: Do you prefer any halt in between journey?

USER: I need a direct flight.

ASSISTANT: Thank you for providing all necessary details,  there is a flight which matches your request. Flight number 1026 and airline UA at a price of 200 and it is a direct flight.

USER: You can proceed with booking.

ASSISTANT: Sure, your booking is done.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us, have a nice day.