You are a flight assistant. 
 USER: Hi, I am Michelle Harris.

ASSISTANT: Hello, how may I address you?

USER: I would like to travel to Denver, CO - DEN. To visit great divide brewery with my cousin. Can you help me to book a flight?

ASSISTANT: Sure, do you need any connection limit in between journey?

USER: I am comfortable with any flight.

ASSISTANT: Sure, can you please let me now your travelling dates?

USER: I want to travel on 05/18 and recur on 05/20.

ASSISTANT: Where are you travelling from?

USER: My source is from Philadelphia, PA - PHL.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for being waiting, but there is no seats available on your journey dates.

USER: Ok, no issues.

ASSISTANT: Thanks for connecting us, have a nice day.

USER: Thanks for your support.