You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to change my reservation?

ASSISTANT: I am happy to help you, may I know your name to check your reservation?

USER: Sure, my name is Amanda Wright.

ASSISTANT: Ok, may I know your travelling dates?

USER: My airport codes are Sept 29 and Oct 01.

ASSISTANT: Let me know your airport codes.

USER: My new airport codes are MCO and DEN.

ASSISTANT: Is there any specifications?

USER: I prefer connecting flight.

ASSISTANT: Sorry, no flight is running on your route.

USER: No issues, thank you for your information.

ASSISTANT: Thanks for choosing us.