You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me to book a connecting flight?

ASSISTANT: Sure, let me know your travelling dates?

USER: My travelling dates are July 26 and 28.

ASSISTANT: May I know your airport codes?

USER: My airport codes are ATL and SFO.

ASSISTANT: Is there any other preferences?

USER: No.

ASSISTANT: Can I know your name?

USER: My name is Linda Thomas.

ASSISTANT: We found a direct flight 1002 in United airline with fare 100 and class is economy. Shall I proceed?

USER: Proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.