You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you today?

USER: Can you help me to book a flight to SFO from LAS?

ASSISTANT: Sure, please share me your trip dates.

USER: My trip dates are Oct 27 and 29.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a direct flight.

ASSISTANT: May I know your airlines preferences?

USER: I am comfortable with any airline.

ASSISTANT: Please share me your other specifications.

USER: I don't have any specifications, please check the availability of flights.

ASSISTANT: For booking, we need your good name. Please provide it.

USER: Sure, John Parker here.

ASSISTANT: We found a Southwest airline and 1022 is flight number with a fare of 100. Shall I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thanks for helping me.

ASSISTANT: Thank you for reaching us.