You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you help me in changing my recent reservation?

ASSISTANT: Sure, we are here to help you. On whose name, I have to check the reservation list?

USER: The reservation is done with the name James Lee.

ASSISTANT: Please stand by.

USER: Ok.

ASSISTANT: Thanks for your time, we found a reservation in your name. Can you share me your trip dates?

USER: My trip dates will be May 13th to May 15th.

ASSISTANT: May I know your airport codes?

USER: My airport codes will be SEA to IAD.

ASSISTANT: Do you need any break in your journey?

USER: Yes, I need a break.

ASSISTANT: Do you have any other preferences?

USER: I need a economy class.

ASSISTANT: There is a connecting flight with fare of 100 and 1005 flight number. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your seat has been reserved with Delta Airlines in economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a safe journey.