You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to attend a Seminar at Seattle, can you help me with booking?

ASSISTANT: May I know your name?

USER: I am Donald Baker.

ASSISTANT: To proceed further I need your source and destination codes.

USER: My source and destination airport codes are IAD to SEA.

ASSISTANT: May I know your trip dates to reserve your seat.

USER: My trip dates are Feb 29 and Mar 02.

ASSISTANT: Are you fine with connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any other requirements to be met?

USER: No.

ASSISTANT: There is a connecting flight-1002 in economy class, is it ok for you?

USER: Ok, please proceed with booking.

ASSISTANT: Ok, booking is done on Frontier airlines.

USER: Thank you.

ASSISTANT: Welcome, have a happy trip.