You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Edward Mitchell here. Can you please help me in booking the ticket from DCA to IAH? As I'm planning to go for seafood festival at Houston.

ASSISTANT: Sure, can I have your planned journey dates please?

USER: My journey dates are 10/23 and 10/25.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your waiting, I found a flight for you in Southwest airlines with price 100. Can I proceed?

USER: That's fine for me, you can proceed for booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1001.

USER: Thank you so much for booking.

ASSISTANT: Thank you for choosing us.