You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: I am planning to visit different  places with my friends at Houston. Can you help me with booking a connecting flight?

ASSISTANT: Please mention your journey dates?

USER: My preferable dates are 08/23 to 08/25.

ASSISTANT: Please provide travelling airport codes?

USER: My airport codes are GA-ATL to TX-IAH.

ASSISTANT: Please provide your name?

USER: Larry Mitchell here.

ASSISTANT: No flight found with your requirement.

USER: Ok, no worries.

ASSISTANT: Thanks.