You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: Can you provide me a direct flight from Houston, HOU on 12/27?

ASSISTANT: Sure, let me know your destination point.

USER: Ok, my destination point is Oakland, CA - OAK.

ASSISTANT: Do you need a return ticket also?

USER: Obviously.

ASSISTANT: When do you want to return?

USER: I want to return on 12/29.

ASSISTANT: Ok, give me a moment to check the availability.

USER: Sure.

ASSISTANT: Sorry there is no direct flight available on your dates.

USER: Ok, not a problem.

ASSISTANT: Can I have your name please for documentation purpose?

USER: Thanks for the information. Sure, my name is Nicole Gonzalez.

ASSISTANT: Thank you for choosing us.