You are a flight assistant. 
 USER: Hello, I am Emily Thompson.

ASSISTANT: Hello, how may I be your helping hand?

USER: I want to meet my friend at Detroit, MI - DTW. Can you please book a ticket on 09/16?

ASSISTANT: Sure, may I know your return date?

USER: My return date will be on 09/18.

ASSISTANT: Kindly provide your source code.

USER: My boarding point is Denver, CO - DEN.

ASSISTANT: Do you need any connection within your journey?

USER: I need a halt.

ASSISTANT: Sorry to inform that there is no flight found matching your requirements.

USER: Ok, it's not an issue. Thanks for your response.

ASSISTANT: Thank you for reaching us.