You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Please help me to book a flight ticket with single connection from Houston to attend a robotic workshop in Philadelphia.

ASSISTANT: Sure, may I know your preferred dates to reserve your seat?

USER: Sure, I am planning to start my journey on 06/20 and the return date will be on 06/22.

ASSISTANT: Do you need any connections between your trip?

USER: I have already mentioned above.

ASSISTANT: May I know your name?

USER: I am Kevin Green.

ASSISTANT: May I know your airport codes to reserve your seat?

USER: My boarding and landing airport codes are HOU and PHL.

ASSISTANT: Is there any other requirements?

USER: No more requirements.

ASSISTANT: We have a connecting flight operated by Hawaiian Airlines with a fare of 100. Shall I book your seat in this flight-1023?

USER: That's fine, please proceed with the booking.

ASSISTANT: Your ticket has been booked successfully.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for opting us.