You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I have invited my mother to my house. So can you help me to book a flight ticket on the name  Margaret Lopez?

ASSISTANT: Sure, may I know the source and destination airport codes of her?

USER: Yes, the source airport and destination airport codes are LGA and PHL.

ASSISTANT: On which dates is she planning to travel?

USER: The source date of her journey is 01/30 and return date is 02/01.

ASSISTANT: Fine, please be on hold. I will check the flight availability.

USER: Ok, ensure that it is a connecting flight.

ASSISTANT: Delta airline is having a flight in that route with travel charge of 100 and connection 1, shall I proceed for booking?

USER: That sounds good, please proceed with the booking.

ASSISTANT: Your ticket has been booked with flight-1001, have a safe journey.

USER: Thank you for your assistance.

ASSISTANT: Welcome, thank you for choosing our service.