You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am planning for a round trip to SFO, can you book a ticket please?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My travel dates are 09/27 and 09/29.

ASSISTANT: Please provide the source airport code of your journey.

USER: My source airport code is SFO.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: There is a flight with price 100 and the connections 1 is available.

USER: Book the ticket in the name of Nicholas Martin.

ASSISTANT: Your ticket is booked. The flight number is 1010 and the airline is JetBlue.

USER: Thank you for booking.

ASSISTANT: Welcome, have a great day.