You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: Patrick Smith here.

ASSISTANT: Yes, Patrick.

USER: I am planning to go for a vacation for a change, to see the place of Old State House in Boston. Will you help me with booking ticket from HOU to BOS?

ASSISTANT: Sure, I will help you with that. What date will you be traveling?

USER: I would like to travel on 08/16 and 08/18.

ASSISTANT: please hold on for a moment to check the flights availability and I will get back with a best flight.

USER: Ok.

ASSISTANT: Thank you for waiting, Patrick.

USER: It's ok.

ASSISTANT: According to your preferable dates I have found a flight from Delta airline.Are you fine with that airline?

USER: I am ok with that.

ASSISTANT: Shall I proceed to book?

USER: Yes, proceed.

ASSISTANT: Patrick, your ticket has been booked with flight number 1004.Have a safe journey.

USER: Thank you for your support.

ASSISTANT: You are most welcome. Thank you for approaching us.