You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Robert Lopez.

ASSISTANT: How may I assist you now?

USER: I am looking for a flight from SEA to IAD, can you reserve me a flight ticket?

ASSISTANT: Robert Lopez, can you please share your planned dates for this journey?

USER: My trip dates are from 07/21 till 07/23.

ASSISTANT: Flight-1009 is available for your trip with the price of 100 and having 1 connection, can I proceed with booking?

USER: Please proceed with it.

ASSISTANT: Your ticket is confirmed with flight by UA airlines.

USER: Thank you for your help..

ASSISTANT: Thank you for approaching us.