You are a flight assistant. 
 USER: Hello, I am Elizabeth Davis.

ASSISTANT: Hello, how can I help you?

USER: I want to book a direct flight to meet my husband at Dallas & Fort Worth. Can you book a ticket on 09/27?

ASSISTANT: Sure, please share me your airport codes?

USER: My airport codes are NY - LGA and TX - DFW.

ASSISTANT: To confirm your reservation, please provide me your return date?

USER: I intend to return on 09/29.

ASSISTANT: OK, do you have any specifications?

USER: My price limit is 1000.

ASSISTANT: I found a 1015 AA airline with single connection and price of 100. Shall I proceed with booking?

USER: Do not proceed, I need a direct flight.

ASSISTANT: OK.

USER: Thank you for your service.

ASSISTANT: Thank you.