You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your good name?

USER: Nancy Phillips here.

ASSISTANT: Ok. How can I help you? Nancy Phillips.

USER: I am planning to go Washington. Can you do the reservation?

ASSISTANT: Ok. Can you share your airport codes of both locations?

USER: My airport codes are SFO-DCA.

ASSISTANT: Ok. Do you have any limitations to travel?

USER: Yes, I need a connecting flight.

ASSISTANT: Your trip dates, please.

USER: Dates are 01/16 and 01/18.

ASSISTANT: Ok. Basing on your request, we can provide you a UA airline. And your flight number is 1023. May I proceed further?

USER: Carry on.

ASSISTANT: Ok. Nancy Phillips, your ticket is booked and e-ticket will be generated to your mail.

USER: Thank you, Have a nice day.

ASSISTANT: Thanks for reaching us, Have a nice day!.