You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I know how best I can help you today?

USER: John Young here. I want to book a flight ticket from IAH to HOU. Can you help me in that?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: My trip dates are Oct 21 to Oct 23.

ASSISTANT: May I know your departure time and arrival time?

USER: My depart time should be in the evening.

ASSISTANT: Do you have any other requirements?

USER: I need a flight with single connection.

ASSISTANT: There is a connected flight in JetBlue airlines with the fare 500.

USER: You can proceed.

ASSISTANT: Your booking is done.

USER: Thank you for booking.

ASSISTANT: Thank you.