You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mark White.

ASSISTANT: How may I help you?

USER: Can you please book a flight ticket from IAD to HOU?

ASSISTANT: On which dates you are willing to travel?

USER: I need to travel on dates of 04/24 and 04/26.

ASSISTANT: Thanks for waiting, we found a flight with your provided information in UA airline with 1 connection and the fare is 100. Shall I confirm your ticket with this airline?

USER: That is fine, please proceed with booking.

ASSISTANT: Please proceed.

USER: Thank you for your help.

ASSISTANT: Most welcome.