You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I have to change my travel airport codes because I have given a airport code which is far to my current location. So, I need your help. Will you please help me in changing the details?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Please forward your name.

USER: Nancy Mitchell.

ASSISTANT: We found a reservation on your name. Can you share your trip dates?

USER: 09/27 and 09/29 are my travelling dates.

ASSISTANT: Kindly, mention airport codes.

USER: SEA and ATL are my airport codes.

ASSISTANT: Do you have any connection limit?

USER: I need  a connecting flight.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Are there any other specifications?

USER: I would prefer an economy class.

ASSISTANT: We found a connecting flight of fare 100 with airline Delta and number 1014. Can I book?

USER: You can reserve it.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for availing us.