You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, What kind of help are you expecting from our side?

USER: I have a plan to visit San Francisco. Can you help me in booking flight ticket?

ASSISTANT: Sure, we are mirthful to help you in that flight booking.

USER: Thank you.

ASSISTANT: May I know on what dates would you like to travel?

USER: I will start my journey on Feb 03 and return on Feb 05.

ASSISTANT: I need your selected airport code, that you wish to board from?

USER: My source airport code is AUS.

ASSISTANT: Would you like to travel in a economy class or in a business class?

USER: I want to travel in economy class.

ASSISTANT: If you have a choice, what time of day would you prefer to fly?

USER: Make sure that my return should be in the evening.

ASSISTANT: Do you need any specifications in connection?

USER: I need a connecting flight.

ASSISTANT: Thank you for your details, we have found a Frontier airline, flight number-1003, connections-1, class-economy and ticket-100. Shall I reserve a ticket for this airline?

USER: You can reserve it.

ASSISTANT: Sure, for that I need to know your name. Can you please provide me?

USER: Myself Karen Perez.

ASSISTANT: Ok, a seat has been reserved successfully for a flight 1003.

USER: Thank you for your quick service.

ASSISTANT: Thank you for being apart with us. Have a safe journey.