You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Kenneth Lee. Will you please help me to book a flight ticket from IAH to PHL?

ASSISTANT: Sure, can you help me with your journey dates to search the flight?

USER: My journey dates are 04/16 and 04/18.

ASSISTANT: There is a flight-1011 from UA airlines, shall I proceed?

USER: If the flight is with connection limit 1,then only proceed with the booking process.

ASSISTANT: Ok, your booking is done.

USER: Thank you very much.

ASSISTANT: Welcome.