You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Garcia.

ASSISTANT: Donald Garcia, how can I aid you today?

USER: Can you help me in booking my flight ticket from IAD to LAX?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Thank you. My trip dates will be Aug 26th to Aug 28th.

ASSISTANT: Ok, do you have any requirements?

USER: My depart time should be in the afternoon.

ASSISTANT: I found a flight for you with Southwest Airlines and it costs you 200. Shall I proceed to reserve a seat in this single connecting flight?

USER: You can proceed with this connecting flight.

ASSISTANT: Your ticket has been booked with 1001 flight number.

USER: Thank you.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.