You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: David Jackson is my name.

ASSISTANT: Good evening David.

USER:  I am very interested in Hiking and cycling. So, I am willing to visit Hiking and cycling at Bear Mountain in Houston. Can you please help me to reserve a flight ticket in the month of June?

ASSISTANT: Sure David, may I know your planned journey dates in the month of June?

USER: My planned dates are 06/10 and 06/12.

ASSISTANT: Please provide me your respective airport codes.

USER: My nearest airport code from Washington is DC - IAD and my destination airport code is HOU.

ASSISTANT: David, I found a flight in Southwest airlines with price 100. Shall I book the ticket for you?

USER: Ok, I am very happy to fly in this flight ticket. You can confirm my ticket without any delay.

ASSISTANT: Your ticket is confirmed and the flight number is 1008.

USER: Thank you for doing favour for me in reserving my flight ticket.

ASSISTANT: Thank you for choosing us.