You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Jonathan Johnson. I want to book a ticket from DCA to OAK, can you please help me with that?

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: My travelling dates are from Sept 3rd to Sept 5th.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Here, I found a flight for you with single connection. Shall I proceed for booking?

USER: May I know the complete flight details?

ASSISTANT: The flight number is 1016 and airline is Frontier.

USER: If the ticket price is under 200, please book.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you.

ASSISTANT: Welcome.