You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Pamela Mitchell.

ASSISTANT: What can I do for you today?

USER: I need to attend a party meeting in Denver. Can you book me a flight ticket which departs in the afternoon?

ASSISTANT: Sure, please provide your travelling dates.

USER: I would start on Mar 11th and return on Mar 13th.

ASSISTANT: Ok, do you prefer economy class or business class?

USER: I am okay with any class.

ASSISTANT: Ok, may I know your corresponding airport codes?

USER: My origin is HOU and destination is DEN.

ASSISTANT: Ok, do you need any lay by in between the journey?

USER: Yes, I need a lay by in the middle.

ASSISTANT: Ok, please wait for some time.

USER: Sure.

ASSISTANT: We found a Jet Blue airline with fare of 200 and a lay by in between the journey matches your schedule.

USER: That's perfect, please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1021 and departure is at 18:00 PM and arrival is at 17:00 PM.

USER: Thanks for your support.

ASSISTANT: Thank you for reaching us.