You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Could you please help me to book a connecting flight from Houston to attend a business meeting in Los Angeles?

ASSISTANT: Sure, may I know your good name?

USER: I am William Brown.

ASSISTANT: Could you please share your planned travel dates?

USER: 04/13 and 04/15 are my planned travelling dates.

ASSISTANT: Do you have any other specifications?

USER: No, I don't have any other specifications.

ASSISTANT: Kindly mention Houston airport code.

USER: My source point is HOU .

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights available as per your requirements.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.