You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am a movie actor, I have to attend awards function at San Francisco. Could you book my ticket from Dallas?

ASSISTANT: Sure, please share me your travel dates.

USER: My itinerary dates are Nov 24 and Nov 26.

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

USER: John Young here.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I am looking for a connecting flight.

ASSISTANT: May I know your class preferences?

USER: I am comfortable with any class.

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

USER: I want to return in the afternoon and I prefer normal-cost airlines.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: No problem, I will find an alternative way to travel.

ASSISTANT: Thank you for opting us.

USER: Thank you for assisting me.