You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Matthew Lee.

ASSISTANT: How can I serve you today?

USER: Please, help me to book me a direct flight to Los Angeles, LAX to attend an surgery.

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Could you please share your source code?

USER: Washington, IAD is my boarding airport.

ASSISTANT: How much you can afford for this journey?

USER: 500 is the budget.

ASSISTANT: To proceed booking I need your journey dates.

USER: I will fly on 10/06 and recur on 10/08.

ASSISTANT: Please, hold on.

USER: Sure.

ASSISTANT: There is a flight with airline: South west, flight number:1005, price 100.

USER: Proceed with my booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.