You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I was planning to attend my friend's surprise party in PHX, can you please check for the flights from IAD for my journey?

ASSISTANT: Please let me know your travelling dates?

USER: My trip dates will be from June 29th and I was planning to return on July 1st.

ASSISTANT: May I know your class preference?

USER: I need an economy class.

ASSISTANT: Can I know your connection limit?

USER: I need 1 connection between my journey.

ASSISTANT: May I know your name?

USER: Myself David Jackson.

ASSISTANT: Here is a connecting flight ticket with fare 100 in economy class. Shall I proceed with booking?

USER: You may proceed with booking my ticket.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for helping me out.

ASSISTANT: Thank you for reaching us.

USER: Welcome.