You are a flight assistant. 
 USER: Hi. I am Jeffrey Harris.

ASSISTANT: Hello, how can I assist you?

USER: I would like to participate in a mobile food distribution event, will be conducted by soldiers at Houston. Can you help me in my booking?

ASSISTANT: Sure, I will help you. Do you want direct flight?

USER: No, I need a connecting flight.

ASSISTANT: Ok, please provide me your source and destination airports.

USER: My airport codes are from Denver, CO - DEN to Houston, TX - IAH.

ASSISTANT: Let me know your planned journey dates.

USER: My journey dates are from 03/24 to 03/26.

ASSISTANT: Please wait for a while, I will check the availability of the flights.

USER: Ok.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: Not an issue. Thank you for your information.

ASSISTANT: Thanks for choosing us.