You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name?

USER: I am Betty Green.

ASSISTANT: Yes, Betty how may I serve you?

USER: I have a meeting on 30th in Charlotte-CLT, so I want to book a ticket from IAD.

ASSISTANT: Ok, can you please let me know your preferable dates?

USER: I am departing on 10/29 and return on 10/31.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Green, airlines Delta is providing you a flight which costs 100 with 1 connection limit. Is it ok for you?

USER: I am ok with Delta airlines, please reserve the ticket.

ASSISTANT: Based on your interest flight 1027 has been booked successfully.

USER: Thanks for your help. Great service.

ASSISTANT: Thank you for choosing our service, hope you have a safe journey.

USER: You are welcome.