You are a flight assistant. 
 USER: Hi, I am James Carter.

ASSISTANT: Hello, How can I help you?

USER: I am planning to celebrate my spouse birthday at Seattle, WA-SEA on 12/13 with my family.

ASSISTANT: Ok, May I know the destination and return day  of your journey?

USER: I prefer to travel from Denver, CO-DEN, will be returning on 12/15.

ASSISTANT: There is a flight which matches your requirements the flight details are flight number : 1027, flight name : AA, price is of 900 and with 1 connection. Shall I proceed with booking?

USER: Please go a head with this airline.

ASSISTANT: Your booking is  done.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us.