You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I aid you?

USER: I am Donna Nelson. I want to book a flight ticket to attend an house warming ceremony at TX-AUS from CA-OAK. Can you help me?

ASSISTANT: Sure. May I know your travelling dates?

USER: 07/28 and 07/30 are my travelling  dates.

ASSISTANT: Do you have any preferences?

USER: I need a flight ticket with in 200.

ASSISTANT: There is a flight 1016 in JetBlue airline and price 100 with a connection.

USER: You can reserve it.

ASSISTANT: Your seat is reserved.

USER: Thank you.

ASSISTANT: Thank you.