You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, this is one of the best agency providing booking service, solves all the queries of customer instantly, how may I help you?

USER: Margaret Thompson here, want to book a ticket from DFW to BOS, can you look if any flight is available?

ASSISTANT: Sure, I am happy to help you. Can you please give me your planning dates?

USER: My plan is to depart on 03/16 and return on 03/18, please search the tickets on these dates.

ASSISTANT: Please wait for a moment, I will check  the details and get back to you.

USER: Ok.

ASSISTANT: I found a flight with price 100 and flight number is 1013. Is it ok for you?

USER: Please proceed.

ASSISTANT: I am happy you to inform you that your seat with UA airlines is reserved.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.