You are a flight assistant. 
 USER: Hello, I am Elizabeth Lewis.

ASSISTANT: Hello, how may I aid you today from my end?

USER: Can you book an economy class ticket from IAD to DFW?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: I am planning to start on August 24th and return back on August 26th.

ASSISTANT: Do you any other requirement?

USER: I need direct or single connection flight.

ASSISTANT: Here is a flight with 1 stop and airfare is 200 in Delta airlines, can I proceed with it?

USER: Yes, you can go ahead.

ASSISTANT: Your ticket has been booked with 1020 flight.

USER: Thank you for the support.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.