You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand?

USER: I am Daniel Rodriguez. I would like to attend Environmental Science Conferences in Lawrence Hall of Science at Oakland, OAK.

ASSISTANT: Ok.

USER: Can you please book a ticket on 05/02?

ASSISTANT: When you are going to catch your return flight?

USER: I will return on 05/04.

ASSISTANT: I need your source point to book a ticket.

USER: Source code is Phoenix, PHX.

ASSISTANT: There is a flight with 1 connection of price 100 in 1000 flight. Having a Hawaiian airline.

USER: You can proceed.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.