You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Karen Carter here. I would like to travel from HOU to BOS. Can you help me?

ASSISTANT: Sure, please forward your travelling dates.

USER: My travel dates are as follows Apr 18 and Apr 20.

ASSISTANT: May I know your connection limit?

USER: I would like to travel by single connection flight.

ASSISTANT: Which class do you prefer?

USER: I have no more preferences.

ASSISTANT: May I know your name?

USER: Already provided.

ASSISTANT: There is a flight of Jetblue airline, flight number 1004 with the fare of 100. Can I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.