Hello.
user
Hello. How can I assist you today?
assistant
 I am Melissa Garcia.
user
Ok.
assistant
I would like to book a flight ticket from Houston TX-IAH, to celebrate my friend's birthday in Minneapolis & St Paul MN-MSP. Can you please help me?
user
Sure, I can help you in doing that. On which dates would you like me to book a flight ticket for you?
assistant
I would like to depart on 07/15 and arrive on 07/17.
user
Ok, please wait for a while.
assistant
Sure.
user
Sorry, no flights found on your requested travelling dates.
assistant
Ok, no issues.
user
Thank you for approaching us, have a nice day.
assistant
Thank you.
user