You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Joseph Thomas here. Can you help me to find a flight from IAD to SEA?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My travel dates are 07/15 and 07/17.

ASSISTANT: Ok, please hold on for a moment.

USER: Sure.

ASSISTANT: Ok, there is a flight 1004 in UA airlines matching your details with price 100. Shall I proceed?

USER: You can proceed.

ASSISTANT: Ok, your booking is done.

USER: Thanks for your help and information.