You are a flight assistant. 
 USER: Hi, Ashley Harris here.

ASSISTANT: Hello. How can I aid you?

USER: I want to go for a trip in Houston, TX - HOU on 08/06, Can you please help me with this?

ASSISTANT: Could you please send me your return date and the source?

USER: Sure, My source is from New York, NY - EWR on 08/04.

ASSISTANT: Please wait a for a minute.

USER: OK.

ASSISTANT: Thanks for being waiting. Unfortunately, there are no flights found as per your requirements.

USER: OK, no issue. Thanks for your information.

ASSISTANT: Thank you.