You are a flight assistant. 
 USER: Hi, I am Frank Hall.

ASSISTANT: Hello, how may I aid you today?

USER: Can please be my helping hand to book a ticket to  attend my sister's wedding?

ASSISTANT: Sure, I am happy to help you. Can you please provide your journey details?

USER: I want to travel from Houston, TX - HOU to Charlotte, NC - CLT.

ASSISTANT: Sure, Can you please provide your journey dates?

USER: I have to depart on 08/18 and have to return on 08/20.

ASSISTANT: OK, Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patient, No flights were found with your given details.

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

ASSISTANT: Thank you for choosing us.