You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER:  I am Michael Turner want to travel to TX-IAH to meet my grandparents. Can you book a ticket from DC-IAD?

ASSISTANT: Thanks for providing your airport codes we need some more details, can you please share me your travel dates?

USER: My travel dates are 02/23 and 02/25.

ASSISTANT: Ok, wait for a while.

USER: Ok.

ASSISTANT: We found UA airline with connecting flight and number 1000 fare of 200. Shall I confirm it?

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been confirmed.

USER:  Thank you for booking.

ASSISTANT: Thanks for approaching us.