You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: Michelle Robinson is here.

ASSISTANT: What help can I do for you?

USER: I would like to attend workshop with my college friend's in Washington DC-IAD, helps to learn new things. Will you please assist me in booking a plane ticket from DC-DCA?

ASSISTANT: Sure, I can help you with that. When did you plan to travel Washington and return?

USER: I am planning to travel on 02/05 from Washington and return on 02/07.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting. We found a AA airline, with fare 100 matching your preferred dates. Are you comfortable with this airline?

USER: You can proceed with this airline.

ASSISTANT: Ok, Your ticket has been confirmed with flight 1021.

USER: Thank you for your kind help.

ASSISTANT: Thanks for visiting our airlines.