You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: I am planning to meet my Business client.Please book a ticket from BOS to DFW.

ASSISTANT: Ok, may I know your preferable dates?

USER: I am departing on 05/27 and arriving on 0529.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: As per your request there is a flight available for you from Delta airlines with number 1001.

USER: Please book my ticket.

ASSISTANT: Ok, your booking is confirmed.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.