You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you today?

USER: Can you please help me in booking a flight ticket from Philadelphia, PHL to Dallas, DFW?

ASSISTANT: Sure, to book a ticket may I know your name please?

USER: My name is Sandra Rodriguez.

ASSISTANT: Do you have any connection limit in between journey?

USER: I need a lay by in between journey.

ASSISTANT: Can you please share on what dates you have planned to travel?

USER: My travelling dates are from May 09 to May 11.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: There is a flight available with an American airline of flight 1009 in an economy class with lay by. Can I proceed?

USER: Sure, you can proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you for opting us.