You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you reserve a seat for me from HOU to IAD, to visit the place National Gallery of Art.

ASSISTANT: Sure, may I know your dates of travel to search for the flight?

USER: I would like to travel on 04/15 and 04/17.

ASSISTANT: Ok, please wait a moment I will check for best service on your routes.

USER: Sure, get back with good airline.

ASSISTANT: Ok, there is a flight 1018 in Delta airline matching your dates with price 100. Shall I proceed?

USER: Proceed with the name Sandra Garcia.

ASSISTANT: Ok, your booking is done.

USER: Thanks for your help.

ASSISTANT: You are welcome, have a nice journey.