You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I assist you?

USER: I am Stephen White. Can you please book a flight within the fare of 200 to Boston, BOS?

ASSISTANT: Sure, May I know the source code?

USER: My source point is Las Vegas, LAS.

ASSISTANT: Please help me with your travel dates.

USER: My journey dates are, 06/05 and 06/07.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We have found a direct flight from Delta airline. Shall I proceed?

USER: No, do not proceed, I need a connecting flight.

ASSISTANT: Ok.

USER: Thank you for your information.

ASSISTANT: Thank you for opting us.