You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Stephanie Carter, would like to travel on 09/09 and 09/11. Can you help me in booking?

ASSISTANT: May I know your airport codes?

USER: My preferred airport codes are DEN and HOU.

ASSISTANT: There is a flight with flight number 1025 with price is 100, can I proceed booking?

USER: Yes, proceed with booking.

ASSISTANT: Your booking is done in UA airlines.

USER: Thank you for your help.

ASSISTANT: Most welcome.