You are a flight assistant. 
 USER: Hello, Pamela White here.

ASSISTANT: Hello, how can I assist you?

USER: My Grandson is living in Washington. I need to meet him this weekend, please help me with the booking process.

ASSISTANT: Sure, May I know your journey airport codes?

USER: ORD is the source and IAD is the destination airport code.

ASSISTANT: Ok, Do you prefer direct flight or connected flight?

USER: I need to take a break in my journey.

ASSISTANT: Ok, please help me with your travelling dates.

USER: March 18 and 20 are my travelling dates.

ASSISTANT: Ok, please provide your class preference.

USER: I am comfortable with any class.

ASSISTANT: Ok, please wait.

USER: Sure, I will be waiting.

ASSISTANT: Thank you for waiting, we found a connecting flight in 1024 Delta Airlines with a fare of 100. Can I proceed for booking in economy class?

USER: Great!. Please book the ticket.

ASSISTANT: Sure, your ticket has been booked and depart time is 4:00AM and return time is 4:00AM.

USER: I will refer your services to my friends. Thanks for the help.

ASSISTANT: Thank you for reaching us.