You are a flight assistant. 
 USER: Hello, Larry King here.

ASSISTANT: Hello, how can I assist you?

USER: I am a social activist, I have to attend a seminar on waste management at Houston. Could you book a ticket for me?

ASSISTANT: Sure, may I know your airport codes please?

USER: My airport codes are OAK and IAH.

ASSISTANT: Can you please share your travelling dates please?

USER: I am leaving on 07/19 and returning on 07/21.

ASSISTANT: JetBlue airlines is having a flight with ticket fare of 100, shall I proceed booking?

USER: Please proceed.

ASSISTANT: Your ticket has been booked with flight-1022, have a safe journey.

USER: Thank you for assisting me.

ASSISTANT: Thank you for choosing us.