You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to visit Downtown aquarium with my family, so can you please help me with booking a single connecting flight?

ASSISTANT: Sure, please share me your travelling dates?

USER: Sure, my preferable journey dates are 05/05 and 05/07.

ASSISTANT: Can I know your airport codes?

USER: Sure, I am flying from DFW to DEN.

ASSISTANT: Can I have your name?

USER: Myself Jonathan Martin.

ASSISTANT: Sorry there are no flights with your specifications.

USER: No worries. Thank you for your information.

ASSISTANT: Thank you for reaching us.