You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Margaret Parker here.

ASSISTANT: Glad to meet you Parker.

USER: I want to join my friends in trekking at Oakland hills, can you please help me in booking a ticket?

ASSISTANT: Sure, I am happy to help you. May I know your travel dates please?

USER: Sure, I want to depart from here on 11/06 and return by 11/08.

ASSISTANT: Ok, may I know your airport codes please?

USER: Sure, my airport codes are SFO and OAK.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Sure.

ASSISTANT: I found a flight for you with UA airline and it costs you 100. Shall I proceed?

USER: Yes, please proceed booking with that flight.

ASSISTANT: Your ticket has been booked with 1024 flight number.

USER: Thank you so much for booking.

ASSISTANT: Welcome, thank you for choosing us.