You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Can you help me to change my reservation to another destination?

ASSISTANT: Sure, I will help you to change your reservation.

USER: My name is Charles Phillips.

ASSISTANT: Please give me a moment.

USER: Please check my details under my name.

ASSISTANT: I found your reservation, please share me your new travelling airport codes.

USER: My airport codes are DCA and MSP.

ASSISTANT: Ok, may I know your travelling dates?

USER: My travelling dates are 07/10 and 07/12.

ASSISTANT: Ok, do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Ok, do you have any other specifications?

USER: I want a  normal cost airline.

ASSISTANT: Sorry, no flights are available on your route with your requirements.

USER: No issues, thank you.

ASSISTANT: Welcome, have a nice day.