You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I have planned to purchase a ticket from IAD to LGA, can you please aid me in booking?

ASSISTANT: Sure, may I know your name?

USER: Nicole Garcia.

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

USER: Sure, am planning my trip on May 10th and return 12th May.

ASSISTANT: Ok, please let me know your class preference.

USER: I am Ok with any class.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: There is a flight having single connection in Delta Airlines and the ticket fare is 100 only. Flight departs at 20:00 hours and arrives at 10:00 hours. Is that ok for you?

USER: Proceed.

ASSISTANT: Your ticket is confirmed successfully in economy class and your flight number is 1007.

USER: Thank you for booking.

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