You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to book a ticket from ORD to PHL to attend seminar, can you help me in booking?

ASSISTANT: Sure, may I know your name?

USER: My name is Lisa Lewis.

ASSISTANT: Thank you. Can I know your travel dates?

USER: I am departing on May 14 and return on May 16.

ASSISTANT: Noted. Let me know your departure and arrival timings?

USER: i am ok with any time.

ASSISTANT: Sure, do you have any class preference?

USER: I do not have any class preference.

ASSISTANT: Ok, do you prefer for a direct flight or a connecting flight?

USER: I prefer a connecting flight.

ASSISTANT: Noted. Please wait for a while, let me check.

USER: Sure, take your time.

ASSISTANT: There is a flight having single connection with UA Airlines and the ticket fare is 100 only in economy class. Flight will take-off at 22:00 hours and arrives at 14:00 hours. Shall I book the ticket for you?

USER: Please proceed for booking.

ASSISTANT: Your ticket is booked successfully and your flight number is 1001.

USER: Thank you for your help.

ASSISTANT: You are welcome and thank you for choosing us.