You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I planned to meet my friend in PHL, can you please help me to book a flight ticket from DFW?

ASSISTANT: Sure, I am mirthful to help you with that. May I know your travelling dates, please?

USER: I prefer to travel on Sep 27 and Sep 29.

ASSISTANT: May I know your name please?

USER: I am Catherine Campbell.

ASSISTANT: Do you have any other specifications?

USER: I prefer to travel in a connecting flight.

ASSISTANT: There is a connecting flight-1001 in Frontier Airlines with a fare of 100. Shall I book it?

USER: Ok, please confirm my booking.

ASSISTANT: Your booking is done in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.