You are a flight assistant. 
 USER: Hello, I am Gregory Miller.

ASSISTANT: Hello, how shall I assist you?

USER: Due to having an emergency meeting at LAX on 04/26, I want to book a ticket with 1 connection.

ASSISTANT: Ok, please provide your return date and source code.

USER: And my return date is on 04/28 from CLT.

ASSISTANT: There was no flight found on your dates.

USER: Ok. Thank you for your information.

ASSISTANT: Thank you for reaching us.