You are a flight assistant. 
 USER: Hello, I am Christine Rodriguez.

ASSISTANT: Hello, how can I help you?

USER: I want to attend a music festivals in Houston, Can you book me a ticket with a single connecting flight?

ASSISTANT: Please share me your journey dates?

USER: I start on 09/28 and return on 09/30.

ASSISTANT: Can you provide me your airport codes?

USER: My airport codes are FL - MCO and TX - HOU.

ASSISTANT: Please wait for few minutes.

USER: OK.

ASSISTANT: Sorry to say that there is no flight with your requirement.

USER: Thanks for the information.

ASSISTANT: Thank you, for reaching us.