You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Christopher Clark here, for my business meeting purpose I came to Houston, now for my next meeting I need to go to Seattle, can you please check once is there any flight available from HOU to SEA?

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates are 01/05 and 01/7.

ASSISTANT: Ok, wait for a minute.

USER: Ok.

ASSISTANT: Sorry Clark, no flight's available on your details.

USER: No issues, thank you for clarification.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.