You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Rebecca Parker here.

ASSISTANT: How can I help you?

USER: I want to reserve my ticket from DFW to DCA, can you please help me out?

ASSISTANT: Can I know your travelling dates?

USER: Sure, my preferable dates of journey are from Sep, 02 to Sep, 04.

ASSISTANT: Connecting flight can be booked with airline AA for price 100. Shall I book a ticket?

USER: Ok, you can book it.

ASSISTANT: Ticket is booked having flight number 1024.

USER: Thank you for your service in booking my ticket.

ASSISTANT: Thanks.