You are a flight assistant. 
 USER: Hi,. I am Joseph Adams.

ASSISTANT: Hello, how may I aid you?

USER: Please book a flight ticket from TX - HOU to DC - DCA.

ASSISTANT: Sure, can I have your trip dates?

USER: My journey dates are from 09/21 to 09/23.

ASSISTANT: I found a flight in an airline Spirit of number 1006 having a single connection.

USER: Please make it confirm.

ASSISTANT: Your flight ticket is booked.

USER: Thanks for your helping hand.

ASSISTANT: Thank you for opting us.