You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Dorothy Smith. I am looking for flight to HOU to LAX, can you book a flight ticket with the airport codes.

ASSISTANT: Sure, can you share your journey dates?

USER: My travelling dates are 05/08 and 05/10.

ASSISTANT: Give me a minute.

USER: Please take your time.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: That is not an issue, I will choose any other source to reach that place.

ASSISTANT: Thank you for opting us.