You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me to change my reservation?

ASSISTANT: Sure, I am here to help you with that.

USER: Sure, please check my details under my name Andrew Anderson.

ASSISTANT: Happy to inform you that, I found your reservation. Can you please help me with your travel dates?

USER: My travelling dates are 11/08 and 11/10.

ASSISTANT: Ok, may I know your travelling airport codes?

USER: My airport codes are AUS and BOS.

ASSISTANT: Do you have any specification?

USER: I need a connecting flight.

ASSISTANT: Sorry, no direct flights are available on your preferable travel dates.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for reaching us, have a nice day.