You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Barbara Carter.

ASSISTANT: Ok.

USER: I am planning to visit Dallas to attend bussiness meeting. Can you book a ticket?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Could you please help me with your travelling dates?

USER: I will start my journey on 02/15 and return on 02/17.

ASSISTANT: May I know your airport codes?

USER: My airport codes are from IAD to DFW.

ASSISTANT: Ok, do you have any preferences?

USER: I need a halt.

ASSISTANT: Thee is a Spirit 1028 airline with fare of 200 and a halt which matches your schedule dates. Shall I proceed with booking?

USER: Proceed for booking.

ASSISTANT: Your booking has been confirmed on name of Barbara Carter.

USER: Thank you.

ASSISTANT: Thank you for choosing us.