You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER:  I am Shirley Harris.

ASSISTANT: How can I be of your service?

USER:  I want to participate in trecking at Rocky Mountain National Park in CO-DEN. Can you book a connecting flight from Oakland,CA-OAK?

ASSISTANT:  Sure, I can help you in that.

USER: Thank you.

ASSISTANT: When will you travel to Denver and return to Oakland?

USER: I will depart on 07/20 and arrive back on 07/22.

ASSISTANT: Ok, We found a connecting flight. Are you able to travel in that?

USER: Yes I have already mentioned above.

ASSISTANT:  Ok, The flight number is 1017, with airfare- 100 and airline- JetBlue.

USER: Ok, you can proceed with booking.

ASSISTANT: Thanks for the confirmation, Your ticket has been reserved.

USER:  Thank you for booking.

ASSISTANT: Thanks for choosing us, have a safe journey!.