You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Gregory Clark here.

ASSISTANT: How may I assist you today?

USER: I want to book a ticket from OAK to IAD, can you please help me with that?

ASSISTANT: Ok, may I know your travelling dates please?

USER: The travel dates are from 05/16 to 05/18.

ASSISTANT: There is a flight available for you with 1 connection at the price of 100 by Southwest airlines, can I book it for you?

USER: Please proceed with that.

ASSISTANT: Your ticket is booked in flight-1002.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing our services.