You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Daniel Carter.

ASSISTANT: How may I serve you at this moment?

USER: I want to book a flight ticket to Washington as I have a plan to go for a death valley adventure. Please help me out.

ASSISTANT: Sure, may I know your airport codes please?

USER: I want to fly from PHL to DCA.

ASSISTANT: Ok, please provide your travelling dates.

USER: My travelling dates are depart date on Aug 29 and return date on Aug 31st.

ASSISTANT: Ok, please wait for few minutes.

USER: Ok.

ASSISTANT: We found a Southwest airline with fare of 200 and a halt in between the journey matches your travelling schedule.

USER: Please go with booking.

ASSISTANT: Your ticket has been confirmed with flight number 1020.

USER: Thank you.

ASSISTANT: Thank you for reaching us.