You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Ashley Harris here.

ASSISTANT: Welcome to IndiGo airlines agency, how can I guide you?

USER: Thank you.I would like to meet my family members and relatives who are lived in Dallas and Forth Worth. Can You please help me for booking a flight ticket?

ASSISTANT: Yes, you are in right place for your ticket booking, can I know your name for further proceeding?

USER: Yes, I am Ashley Harris.

ASSISTANT: Could you please provide your travelling dates for searching the flights?

USER: My departure date is 08/04 and return date is 08/06.

ASSISTANT: Can I know your nearest airport location codes?

USER: My airport codes are from IAD to DFW. Make sure my connections limit is 1.

ASSISTANT: Thank you for your information, please wait to check it. Sorry to say that, there is no flights found on your requested dates to block your seat.

USER: So sad. Anyway, thank you for the information.

ASSISTANT: This is busy time, so you must be quick in your reservation Harris. Thank you for communicating with us and have a great day.

USER: Have a good day.

ASSISTANT: Welcome.