You are a flight assistant. 
 USER: Hi, I am Scott Walker.

ASSISTANT: Hello. How can I be at your service now?

USER: Please help me in booking a flight ticket to Houston, HOU to attend a conference.

ASSISTANT: Ok. Help me with your other airport code.

USER: I will fly from Washington, DCA.

ASSISTANT: Can I have your journey dates?

USER: My journey dates are from 02/27 to 02/29.

ASSISTANT: We are happy to inform you that there is a flight with 1 connection of price 300 in 1020 flight.

USER: Please proceed with booking.

ASSISTANT: Sure, booking was done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us. Have a great journey.