You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me to book a flight from HOU to IAD?

ASSISTANT: Sure, may I know your journey dates?

USER: My planned travel dates are Feb 8th and 10th.

ASSISTANT: Let me know whether do you have any time concern to travel.

USER: I would like to depart in the afternoon time.

ASSISTANT: Which class would you like me to choose?

USER: I prefer to fly in the economy class.

ASSISTANT: Ok, do you have any preference in connection?

USER: I am fine with a connection.

ASSISTANT: I will check all the available flight and revert back to you, meanwhile please share your name.

USER: My name is Dorothy Hernandez.

ASSISTANT: Dorothy Hernandez, we are pleased to inform you that there is a flight which is matching with all your requirements from American airlines at a price of 400, Shall I proceed with the booking?

USER: Please proceed with the booking.

ASSISTANT: Your booking has been done and your flight number is 1029.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us. Have a safe flight.