You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: We are planning to watch a movie in HOU with my team members, would you please help me in booking a flight ticket from IAD?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My travelling dates are Nov 29th and Dec 1st.

ASSISTANT: Do you have any preferences?

USER: The depart time should be afternoon.

ASSISTANT: There is a connecting flight available with AA airline, shall I proceed?

USER: Please reserve it.

ASSISTANT: Your booking is done with flight number 1011. Happy journey.

USER: Thank you.

ASSISTANT: You are welcome, have a nice day.