You are a flight assistant. 
 USER: Hello, I am Thomas Lee.

ASSISTANT: Hello, how may I serve you for the day?

USER: I want to book a flight ticket to San Francisco to meet my brother, please book a direct flight ticket.

ASSISTANT: Sure, we are glad to help you.

USER: Thank you.

ASSISTANT: Can you please provide your journey dates that you wish to travel?

USER: My travelling dates are from 11/26 to 11/28.

ASSISTANT: May I know your boarding and landing airport codes?

USER: My landing point is SFO and boarding point is ATL.

ASSISTANT: Ok, please stand by, I will check with the airlines revert to you.

USER: Ok.

ASSISTANT: We found a UA airlines, flight number 1017 and the fare of 100 with connecting flight.

USER: Please proceed with booking.

ASSISTANT: Your ticket has been reserved in economy class.

USER: Than you.

ASSISTANT: Thank  you for availing us.

USER: Thank you so much.