You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you?

USER: I am Barbara Green. Could you please book a ticket to Denver as I want to attend a sports festival with my friends?

ASSISTANT: Sure, when are you planning to travel?

USER: My travel dates are 11/06 and 11/08.

ASSISTANT: Could you please provide your airport codes?

USER: I am heading to Denver, DEN from Seattle, SEA.

ASSISTANT: Let me know your specifications?

USER: I need a halt in between my journey.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately there is no flights found based on your details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.