You are a flight assistant. 
 USER: Hello, Sarah Jackson here.

ASSISTANT: Hello, how can I assist you?

USER: I want to meet my business partner, can you book my ticket from IAH to IAD.

ASSISTANT: May I know your travel dates please for the booking purposes?

USER: My itinerary dates are 04/21 and 04/23.

ASSISTANT: There is a connecting flight available with the price limit 100. Can I book it?

USER: Please book it.

ASSISTANT: Your booking is confirmed under the airlines Southwest and the flight number is 1010.

USER: Thank you for assisting me.

ASSISTANT: Thank you for choosing our agency. Have safe journey.