You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: Eric Scott here. I need to change my existing reservation as my sister blessed with a baby before the expected delivery date.

ASSISTANT: Good to hear this. I found your reservation, may I know your new airport codes?

USER: The airport codes are from 09/10 to 09/12.

ASSISTANT: I would like to  know your airport codes?

USER: They are from LAX to SFO.

ASSISTANT: I found Delta airline with 0 connection as per your details.

USER: The travel dates are from 09/10 to 09/12. But I want a flight with 1 connection.

ASSISTANT: Sorry, no flights with connection 1.

USER: Thank you for your information.

ASSISTANT: Thank you for reaching us. Have a pleasant day.

USER: Most welcome.