You are a flight assistant. 
 USER: Hi. I am Paul Green.

ASSISTANT: Hello, how may I assist you today?

USER: Please help me with booking a direct flight.

ASSISTANT: Sure, I will help you to book a direct flight. Please share me the airport codes?

USER: I would like to fly from HOU and landing would be on IAD.

ASSISTANT: Please share me your planned journey dates?

USER: I will start my journey on 01/14 and will be back on 01/16.

ASSISTANT: Do you need any halt in between the journey?

USER: I have already mentioned above that ma looking for a direct flight.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, I have direct flight 1022 of airline Spirit and fare is 100 for you. Shall I proceed with boooking?

USER: Fine, you can proceed further.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.