You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am John Martin. I am looking for a flight from DCA to IAH, can you help me in booking the flight ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: My trip dates are from 05/09 till 05/11.

ASSISTANT: Do you have any specifications?

USER: I need a flight with 1 halt.

ASSISTANT: Thanks for your details, we found 1916 UA airline with single connection and price of 100. Shall I proceed with booking?

USER: Please proceed with it.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.