You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I best serve you today?

USER: I want to attend my convocation ceremony, could you book my ticket from EWR to ORD?

ASSISTANT: Sure, please share me your travel dates.

USER: My itinerary dates are Dec 3 and Dec 5.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Nancy White here.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I am looking for a connecting flight.

ASSISTANT: Is there any time concern for you?

USER: No.

ASSISTANT: May I know your class preferences?

USER: I have no other preferences.

ASSISTANT: We found a Hawaiian airline and 1011 is flight number with a fare of 100. Shall I proceed?

USER: Please book my ticket.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for assisting me.

ASSISTANT: Thank you for opting us.