You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: I need to book a flight ticket from HOU to BOS, Can you please help me for booking?

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

USER: I would like to travel on 06/19 to return on 06/21.

ASSISTANT: Do you have any preferences?

USER: I am comfortable with any preferences.

ASSISTANT: May I know your name? There is a connecting flight available with Delta airline, shall I proceed?

USER: Kenneth Hernandez here. Ok, proceed for booking.

ASSISTANT: Your booking is done with flight number 1001.

USER: Thanks for your information.

ASSISTANT: You are welcome, have a nice day.