You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: As I am a scientist, I want to attend science festival with my students at Phoenix. Can you do the reservation?

ASSISTANT: Sure, we are here to help you. Can you please help me with your travelling dates?

USER: My trip dates are Jan 05th and Jan 07th.

ASSISTANT: May I know your source airport code?

USER: Source airport code is PHL.

ASSISTANT: Please mention your connection limit to proceed further.

USER: I need direct flight.

ASSISTANT: Do you have any specifications with airline?

USER: I need low cost airline.

ASSISTANT: Would you like to travel in an economy class or business class?

USER: I am comfortable with any class.

ASSISTANT: Is there any other specifications to be met?

USER: No.

ASSISTANT: Thanks for providing details, no flights are available on your journey routes.

USER: No problem, Thanks for the information.

ASSISTANT: Kindly mention your name for the documentation.

USER: Anna Scott here.

ASSISTANT: Ok, thank you for choosing us.