You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am planning to visit Museum of Nature and Science at Denver, could you please help me with booking a flight ticket from PHL to DEN?

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates?

USER: I would like to depart on Sept 15th and return on Sept 17th.

ASSISTANT: May I know your name?

USER: I am Samantha Allen.

ASSISTANT: Do you have any other specifications?

USER: I am looking for a connecting flight.

ASSISTANT: Ok, wait for some time.

USER: Sure, take your time.

ASSISTANT: We found Frontier airline with connecting flight and number 1012 fare of 200, Shall I proceed for booking?

USER: Please confirm the booking.

ASSISTANT: Your ticket has been confirmed.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thanks for approaching us.