You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Myself Jennifer Carter. I am planning to attend a entrepreneurship meeting at Denver this month. Can you please help me in reserving the ticket from PHL to DEN?

ASSISTANT: Ok, please mention your preferable dates to go.

USER: I am planning my trip on Mar 26, and again I will return back on Mar 28.

ASSISTANT: Do you have any class preferences?

USER: I am flexible with any airlines.

ASSISTANT: There is a connecting flight-1000 in economy class, would you like me to book it?

USER: Yes, I think that can work for me. Please go ahead and reserve the ticket.

ASSISTANT: Ok, booking is done on Hawaiian airlines.

USER: Thank you very much for reserving the ticket.

ASSISTANT: Welcome Jennifer Carter.