You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: Larry Collins here. Can you book a ticket from HOU to HOU?

ASSISTANT: Sure, can I know your preferable dates?

USER: Ok, here are my travel dates 10/11 and 10/13. Please proceed with 1 connection.

ASSISTANT: I am sorry, there are no flights available. Thank you.

USER: No issues, thank you.