You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how could I assist you today?

USER: I am planning to attend  my sister engagement at Phoenix. Could you please help me with booking a connecting flight?

ASSISTANT: Sure, could you please help me with your travelling dates?

USER: My trip dates are 01/29 and 01/31.

ASSISTANT: Ok, provide your airport codes?

USER: My journey starts from CO-DEN to AZ-PHX.

ASSISTANT: To proceed ahead we need your good name please?

USER: Larry Hall.

ASSISTANT: There is a 1000 airline with fare of 100 matches your schedule.

USER: Please go ahead with booking.

ASSISTANT: Your ticket has been confirmed with booking.

USER: Thank you.

ASSISTANT: Thank you for your choosing us.