You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I need you to book a flight ticket from CLT to ORD. Please help me.

ASSISTANT: Sure, may I know your planned travel dates please?

USER: February 5 and 7 are my planned travelling dates.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I wish to fly in a connecting flight.

ASSISTANT: Do you have any class preference?

USER: I am ok with any class to fly.

ASSISTANT: Do you have any particular time for departing and returning?

USER: Nothing particularly.

ASSISTANT: We found United airline with economy class and flight number is 1015 with arrival time is 9:00 hours and departure time is 1:00 hours.Shall I proceed for booking?

USER: Yes, please book on my name, Helen Green.

ASSISTANT: May I know your good name please?

USER: Helen Green here.

ASSISTANT: Your ticket is booked.

USER: Great! Thank you.

ASSISTANT: You are welcome.