You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to see my grand father in his old days and want to spend time with him, so can you please assist me in booking my flight ticket from IAH?

ASSISTANT: Sure, please share me your trip dates.

USER: My trip dates will be July 7th to July 9th.

ASSISTANT: May I know your destination airport code?

USER: I would like to land on SEA.

ASSISTANT: Is there any class preferences for you?

USER: Please check the availability of flight with the economy class.

ASSISTANT: Do you need direct flight or connecting flight?

USER: Usually I prefer a direct flight, but this time I need to travel in a connecting flight.

ASSISTANT: Please share me your other preferences.

USER: No.

ASSISTANT: We found a Frontier airline and 1018 is flight number with a fare of 200. Shall I proceed?

USER: You can proceed.

ASSISTANT: Please mention your good name.

USER: Please confirm my flight ticket with the name Patricia Jackson.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.