You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Thomas Hill here. I want to travel from IAD to IAH for attending a seminar. Can you please help me for booking the flight ticket?

ASSISTANT: To check the flight details, may I know your travel dates?

USER: My travelling dates are from 03/11 to 03/13. Make sure my connections limit is 0.

ASSISTANT: We found a flight on your details. Airline Delta, flight number: 1021. Shall I book this ticket?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your ticket has been booked.

USER: Thanks for helping me.

ASSISTANT: Thank you.