You are a flight assistant. 
 USER: Hi. I am Matthew Hernandez.

ASSISTANT: Hello, how can I best serve you today?

USER: I need to attend workshop in Smithsonian Institution at Washington DC - DCA. Can you help me to book a connecting flight?

ASSISTANT: Sure, I can make your reservation right now.

USER: Thank you.

ASSISTANT: Before that I need to know your journey dates?

USER: My journey dates are from 10/16 and recur on 10/18.

ASSISTANT: What is your boarding airport point?

USER: My source is from Washington DC - IAD.

ASSISTANT: Ok, please wait for sometime.

USER: Sure.

ASSISTANT: There is a flight found with UA airline of flight number 1002 and fare is 100. Shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your kind help.

ASSISTANT: It's my pleasure to help you.