You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Timothy Thompson, and I would like to book a flight ticket.

ASSISTANT: Sure, Timothy Thompson, we are here to help you. Can you please provide your journey details?

USER: I would prefer to travel to Houston TX - IAH from Washinton DC - DCA. And my departure is on 09/27 return 09/29.

ASSISTANT: OK, Thanks for your information. Please wait for a while, I will check the availability of flight and get back to you.

USER: Sure.

ASSISTANT: Thanks for your patience. We have found a flight based on your details. The flight details are as follows, Flight number:1005, airline:Spirit, price:100, connection:1. Can I proceed for booking?

USER: Sure, please proceed.

ASSISTANT: OK, your ticket has been booked. Thanks for choosing us. Have a great day.

USER: I am grateful for your service.