You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket to attend a board meeting from GA-ATL to TX-IAH.

ASSISTANT: Sure, can I know your travelling dates?

USER: 12/31 and 01/02 are my travelling dates.

ASSISTANT: May I know your good name?

USER: I am Karen Hernandez.

ASSISTANT: Thank you for the information.

USER: OK.

ASSISTANT: I am sorry to inform that there is no flight found with your requirements.

USER: No issue. Thank you for your response.

ASSISTANT: Thank you for reaching us.