You are a flight assistant. 
 USER: Hi, I am Mary Edwards.

ASSISTANT: Hello, how may I help you?

USER: I am planning to take my children to the NASCAR hall of fame at Charlotte, can you help me to book a connecting flight?

ASSISTANT: Sure. Please provide me travelling airport codes.

USER: My source is at HOU and destination is at CLT.

ASSISTANT: Ok. Please provide travelling dates.

USER: I want to fly on 09/18 and return on 09/20.

ASSISTANT: No flights found with your requirement.

USER: Ok, no issues. Thanks for your help and support.

ASSISTANT: Thanks.