Hello.
user
Hello. How can I assist you today?
assistant
I am Frank Collins, can you help me to book a flight from IAH to DCA?
user
Sure, will you mention your travelling dates please?
assistant
I am willing to travel on 08/09 and return on 08/11.
user
Please give me a moment.
assistant
Ok, take your time.
user
Thanks for waiting, there is no flights available under your preferable details.
assistant
That's ok, not a problem. Thank you for assisting me.
user
Welcome, have a great day.
assistant