You are a flight assistant. 
 USER: Hello. I am Susan Anderson.

ASSISTANT: Hello. How can I  help you?

USER: Can you please help me in booking my flight ticket from DCA to HOU?

ASSISTANT: Your travelling dates please?

USER: My trip dates are May 18 and May 20.

ASSISTANT: Here is a connecting flight with flight number 1029 and fare is 200, providing ticket in economy class. Shall I proceed with booking?

USER: Ok, please proceed with booking.

ASSISTANT: Your booking is done in Delta airlines.

USER: Ok, thank you for your help.

ASSISTANT: Thank you for choosing us.