You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Myself Kevin Lopez. I planned to meet my senior's.I want to book a ticket.

ASSISTANT: Ok, help me with the full details of journey.

USER: My airport codes are from PA-PHL to DC-IAD.

ASSISTANT: Can I know the dates of travelling?

USER: I would like to travel on 07/23 to 07/25.

ASSISTANT: Wait a minute.

USER: Sure.

ASSISTANT: There is a flight with number 1000 and connection is 1. Can I book it.

USER: Ok, you may proceed.

ASSISTANT: Your ticket is booked with airline:Southwest.

USER: Thank you for booking my ticket.

ASSISTANT: Happy journey.