You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I am a movie actor, I have to meet my director for my trial shoot. So please book my ticket from MSP to SFO.

ASSISTANT: Sure, may I know your good name?

USER: Jason Lee here.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Could you please share your depart and arrival dates?

USER: My itinerary dates are Aug 21 and Aug 23.

ASSISTANT: Is there any other preferences?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, there are no flights available as per your requirements.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.