You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Cynthia Green.

ASSISTANT: How may I help you?

USER: Can you please book a flight ticket from DCA to IAH?

ASSISTANT: Sure, can I have your journey dates please?

USER: Sure, I need to travel on dates of 07/09 and 07/11.

ASSISTANT: Please wait a moment.

USER: Sure, take your time.

ASSISTANT: Thank you for your patience, I found a flight for you in UA airlines with fare 100. Can I proceed?

USER: That is fine, please proceed with booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1015.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.

USER: Most welcome.