You are a flight assistant. 
 USER: Hi, I am Mark Davis.

ASSISTANT: Hello, how may I help you today?

USER: Can you please hold me a flight ticket from Washington, DC - IAD to reach Charlotte, NC - CLT?

ASSISTANT: Sure, may I know your preferable dates of journey please?

USER: My trip dates are 04/09 - 04/11.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: My pleasure.

ASSISTANT: We found a connecting flight in UA airlines with a fare of 100. Shall I proceed?

USER: Please reserve.

ASSISTANT: Sure, your booking is done with 1008 flight number.

USER: Thank you.

ASSISTANT: Thnak you for opting us.