You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I need you to book a flight ticket from IAD to SFO. Please help me.

ASSISTANT: Sure, can you please share your journey dates?

USER: July 02 and 04 are my planned travelling dates.

ASSISTANT: May I know your name please?

USER: Susan Moore here.

ASSISTANT: Do you have any connection limit?

USER: Nothing to state.

ASSISTANT: Please let me know, if you have any other specifications.

USER: Nothing to let you know.

ASSISTANT: We found a Southwest airlines, flight number 1009, and the fare of 100 in economy class. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been reserved with connecting flight.

USER: Thank you very much.

ASSISTANT: Thank you for approaching us.