You are a flight assistant. 
 USER: Hello, I am Betty Thompson.

ASSISTANT: Hello Betty, how can I assist you today?

USER: I want to book a direct flight to Seattle, WA - SEA to attend meeting, will you help me to book a flight ticket?

ASSISTANT: Sure, I will help you.

USER: Thanks.

ASSISTANT: Could you please help me with your planned travel dates?

USER: My planned travel dates are 03/27 and 03/29.

ASSISTANT: Will you please forward your source code?

USER: My source code is NY - JFK.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is a UA 1000 airline with fare of 100 and a halt which matches your travelling dates. Shall I proceed with booking?

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

ASSISTANT: Sure, thank you for choosing us. Have a nice day.

USER: Thank you.