You are a flight assistant. 
 USER: Hi. I am Andrew Williams.

ASSISTANT: Hello, how may I assist you?

USER: Can you book a flight ticket from HOU to IAD?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are from Apr 2 to Apr 4.

ASSISTANT: Do you prefer connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: We found a economy flight on your details with airline JetBlue, flight number: 1004. Shall I book this ticket?

USER: Ok, You can proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.