You are a flight assistant. 
 USER: Hi. I am Michelle Harris.

ASSISTANT: Hello, how may I render you today?

USER: I want to book a connecting flight ticket .Can you help me with this booking?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Can you please let me know the  depart and arrival dates of your journey?

USER: Sure. 05/18 and 05/20 are my travelling dates.

ASSISTANT: May I know your source and destination points with airport codes?

USER: IAD and OAK are my airport codes.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: There is a flight found matching your essentials, AA as airline, flight number 1003 and the fare of 100. Shall I proceed?

USER: You can reserve it.

ASSISTANT: Your ticket has been reserved with connecting flight in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.