You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Rachel Robinson here.

ASSISTANT: Rachel, how can I aid you?

USER: I want to book a flight to meet my husband, can you book a ticket from PHL to BOS?

ASSISTANT: Sure, I will help you. Could you please let me know your travel dates?

USER: My travelling dates for this journey will be from 08/21 to 08/23.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your own time.

ASSISTANT: Flight-1000 is available with Delta airlines and the ticket fare is 100 only. Is it ok for you?

USER: Ok, please proceed with booking my ticket.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you so much for helping me out.

ASSISTANT: Thank you very much for choosing us.

USER: Most welcome.