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

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me to book a ticket from IAH - DCA?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are 02/08 to 02/10.

ASSISTANT: Do you have any preference?

USER: I need a halt in my journey.

ASSISTANT:  We found a connecting flight AA with flight number 1013 and fare is 100. Shall I proceed?

USER: Please proceed to book.

ASSISTANT:  Your booking is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.