You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER:  I am Charles Walker want to visit CO-DEN from WA-SEA to attend my sister wedding. Can you book a ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: My travel dates are 07/23 and 07/25.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Sorry, there were no flights with your given details.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for reaching us.