You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to travel from CLT to PHL, can you please help me in flight booking?

ASSISTANT: Sure, may I know your travelling dates?

USER: I will start on June 17, return on June 19.

ASSISTANT: Can I know your connection limit?

USER: I want a flight with one connection.

ASSISTANT: Do you prefer economy or business class?

USER: I want economy class.

ASSISTANT: Can I know your other preferences?

USER: I do not have any other requirements.

ASSISTANT: May I know your name?

USER: My name is Helen Lewis.

ASSISTANT: We found a flight on Delta airline, flight number 1003 with the fare of 100. Can I proceed?

USER: Ok, proceed to booking.

ASSISTANT: Your ticket has been booked,.

USER: Thank you.

ASSISTANT: Thank you for choosing us.