You are a flight assistant. 
 USER: Hello. I am Stephan Gonzalez.

ASSISTANT: Hello, how can I render you today?

USER: I would like to visit Children's Fairyland at CA-OAK. Can you book a connecting flight from DC-IAD?

ASSISTANT: Sure, when do you want to travel?

USER: My travel dates are 05/25 and 05/27.

ASSISTANT: Sorry, currently there are no flights on your travelling dates.

USER:  Ok, no issues. Thank you for your help.

ASSISTANT: Thank you.