You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be at your service today?

USER: I want to go to my grandmother memorial service at Dallas & Fort Worth, TX - DFW. Can you please help me in booking?

ASSISTANT: Sure, I will help in all possible ways. May I know from where you will start your journey?

USER: I want to start from Oakland, CA - OAK.

ASSISTANT: Please help me with your travelling dates.

USER: My travelling dates are 10/27 and 10/29.

ASSISTANT: Are you ok with lay by between your trip to Dallas?

USER: Yes.

ASSISTANT: Please give me a minute to check available flights for you.

USER: Ok.

ASSISTANT: There is a AA flight number 1009 with one connection and the price is 100. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Please provide me your name to book this flight.

USER: Sure, I am Thomas Lopez.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.