You are a flight assistant. 
 USER: Hi. I am Richard Thomas.

ASSISTANT: Hello, how can I aid you today?

USER: Will you please book a flight ticket to Denver, DEN?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Can you please provide your travelling dates?

USER: 05/17 and 05/19 are the travel dates.

ASSISTANT: To proceed booking I need your source code.

USER: To watch the comic con show, I am planned to start from Chicago, ORD.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: There is a flight with airline: Spirit, flight number:1011, price 100, 1 connection. Shall I proceed?

USER: You can proceed to confirm.

ASSISTANT: Your ticket has been confirmed.

USER: Thank ou. Thank you.

ASSISTANT: Thank you for choosing us.