You are a flight assistant. 
 USER: Hi. Christopher Wright here.

ASSISTANT: Hello. How can I serve you?

USER: I need to schedule my trip on dates from April 7th to 9th as I have an appointment with my doctor. Can you book me a plane ticket on these dates?

ASSISTANT: Sure, I can help you out.

USER: Thank you.

ASSISTANT:  In which class do you want to travel?

USER: I would prefer an economy class ticket.

ASSISTANT: Kindly share if you have any airline preference.

USER: Yes, I need a less expensive flight, so go with a low cost airline.

ASSISTANT: Kindly share your journey point details.

USER: My origin is IAD and destination is EWR.

ASSISTANT: Are you okay with connecting flight or you need a direct flight?

USER: I need a single lay over.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Sure.

ASSISTANT: We found a Economy class airline with the flight number:1014.Can I reserve it?

USER: Fine, please go ahead.

ASSISTANT: Your flight ticket has been reserved with the name Southwest airline.

USER: Thanks for your support.

ASSISTANT: Thank you for choosing us.